Office of Science, Office of Basic Energy Sciences, of the U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-05CH11231]

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Office of Science, Office of Basic Energy Sciences, of the U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-05CH11231]

Authors

Publications

Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors

Mijailović, Daniel; Radmilović, Vuk; Lačnjevac, Uroš; Stojanović, Dušica; Jović, Vladimir D.; Radmilović, Velimir R.; Uskoković, Petar

(Elsevier B.V., 2020)

TY  - JOUR
AU  - Mijailović, Daniel
AU  - Radmilović, Vuk
AU  - Lačnjevac, Uroš
AU  - Stojanović, Dušica
AU  - Jović, Vladimir D.
AU  - Radmilović, Velimir R.
AU  - Uskoković, Petar
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4434
AB  - We report a mesoporous composite system consisting of carbon fiber cores surrounded with Co1.5Mn1.5O4 spinel nanocrystal shells, synthesized by a simple two-step process involving single-nozzle co-electrospinning and subsequent calcination. Benefiting from the obtained core-shell structure, this composite has exhibited high specific capacitance in the two-electrode configuration, up to 384 F g(-1) at 0.28 A g(-1), with no capacitance loss after 2000 cycles at 50 mV s(-1). The incorporation of spinel nanocrystals improved the capacitive performances of composite fibers due to a synergistic effect of redox-active shells and the conductive cores, making this novel material promising for symmetrical supercapacitors.
PB  - Elsevier B.V.
T2  - Applied Surface Science
T1  - Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors
SP  - 147678
VL  - 534
DO  - 10.1016/j.apsusc.2020.147678
ER  - 
@article{
author = "Mijailović, Daniel and Radmilović, Vuk and Lačnjevac, Uroš and Stojanović, Dušica and Jović, Vladimir D. and Radmilović, Velimir R. and Uskoković, Petar",
year = "2020",
abstract = "We report a mesoporous composite system consisting of carbon fiber cores surrounded with Co1.5Mn1.5O4 spinel nanocrystal shells, synthesized by a simple two-step process involving single-nozzle co-electrospinning and subsequent calcination. Benefiting from the obtained core-shell structure, this composite has exhibited high specific capacitance in the two-electrode configuration, up to 384 F g(-1) at 0.28 A g(-1), with no capacitance loss after 2000 cycles at 50 mV s(-1). The incorporation of spinel nanocrystals improved the capacitive performances of composite fibers due to a synergistic effect of redox-active shells and the conductive cores, making this novel material promising for symmetrical supercapacitors.",
publisher = "Elsevier B.V.",
journal = "Applied Surface Science",
title = "Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors",
pages = "147678",
volume = "534",
doi = "10.1016/j.apsusc.2020.147678"
}
Mijailović, D., Radmilović, V., Lačnjevac, U., Stojanović, D., Jović, V. D., Radmilović, V. R.,& Uskoković, P.. (2020). Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors. in Applied Surface Science
Elsevier B.V.., 534, 147678.
https://doi.org/10.1016/j.apsusc.2020.147678
Mijailović D, Radmilović V, Lačnjevac U, Stojanović D, Jović VD, Radmilović VR, Uskoković P. Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors. in Applied Surface Science. 2020;534:147678.
doi:10.1016/j.apsusc.2020.147678 .
Mijailović, Daniel, Radmilović, Vuk, Lačnjevac, Uroš, Stojanović, Dušica, Jović, Vladimir D., Radmilović, Velimir R., Uskoković, Petar, "Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors" in Applied Surface Science, 534 (2020):147678,
https://doi.org/10.1016/j.apsusc.2020.147678 . .
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Highly Active Rutile TiO2 Nanocrystalline Photocatalysts

Đokić, Veljko; Marinković, Aleksandar; Petrović, Rada; Ersen, Ovidiu; Zafeiratos, Spyridon; Mitrić, Miodrag; Ophus, Colin; Radmilović, Velimir R.; Janaćković, Đorđe

(Amer Chemical Soc, Washington, 2020)

TY  - JOUR
AU  - Đokić, Veljko
AU  - Marinković, Aleksandar
AU  - Petrović, Rada
AU  - Ersen, Ovidiu
AU  - Zafeiratos, Spyridon
AU  - Mitrić, Miodrag
AU  - Ophus, Colin
AU  - Radmilović, Velimir R.
AU  - Janaćković, Đorđe
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4470
AB  - The controllable synthesis of rutile TiO2 single crystal particles with the preferential orientation of {111} facets still remains a scientific and technological challenge. Here, we developed a facile route for fabrication of rutile TiO2 nanorod crystals (RTiO(2)NRs) having high ratios of oxidative {111} to reductive {110} surfaces. RTiO(2)NRs were synthesized using a peroxo-titanium complex (PTC) approach, which was controlled by changing the Ti/H2O2 ratio. The thus obtained RTiO(2)NRs revealed a high tendency to agglomerate through orientation-dependent attachment along the {110} facets. This resulted in an increased {111}/{110} surface ratio and led to a markedly improved photocatalytic activity of RTiO2NR aggregates. The reported findings illustrate the rich potential of the herein proposed facile and energy-efficient synthesis of nanostructured rutile TiO2-based photocatalysts.
PB  - Amer Chemical Soc, Washington
T2  - ACS Applied Materials & Interfaces
T1  - Highly Active Rutile TiO2 Nanocrystalline Photocatalysts
EP  - 33068
IS  - 29
SP  - 33058
VL  - 12
DO  - 10.1021/acsami.0c03150
ER  - 
@article{
author = "Đokić, Veljko and Marinković, Aleksandar and Petrović, Rada and Ersen, Ovidiu and Zafeiratos, Spyridon and Mitrić, Miodrag and Ophus, Colin and Radmilović, Velimir R. and Janaćković, Đorđe",
year = "2020",
abstract = "The controllable synthesis of rutile TiO2 single crystal particles with the preferential orientation of {111} facets still remains a scientific and technological challenge. Here, we developed a facile route for fabrication of rutile TiO2 nanorod crystals (RTiO(2)NRs) having high ratios of oxidative {111} to reductive {110} surfaces. RTiO(2)NRs were synthesized using a peroxo-titanium complex (PTC) approach, which was controlled by changing the Ti/H2O2 ratio. The thus obtained RTiO(2)NRs revealed a high tendency to agglomerate through orientation-dependent attachment along the {110} facets. This resulted in an increased {111}/{110} surface ratio and led to a markedly improved photocatalytic activity of RTiO2NR aggregates. The reported findings illustrate the rich potential of the herein proposed facile and energy-efficient synthesis of nanostructured rutile TiO2-based photocatalysts.",
publisher = "Amer Chemical Soc, Washington",
journal = "ACS Applied Materials & Interfaces",
title = "Highly Active Rutile TiO2 Nanocrystalline Photocatalysts",
pages = "33068-33058",
number = "29",
volume = "12",
doi = "10.1021/acsami.0c03150"
}
Đokić, V., Marinković, A., Petrović, R., Ersen, O., Zafeiratos, S., Mitrić, M., Ophus, C., Radmilović, V. R.,& Janaćković, Đ.. (2020). Highly Active Rutile TiO2 Nanocrystalline Photocatalysts. in ACS Applied Materials & Interfaces
Amer Chemical Soc, Washington., 12(29), 33058-33068.
https://doi.org/10.1021/acsami.0c03150
Đokić V, Marinković A, Petrović R, Ersen O, Zafeiratos S, Mitrić M, Ophus C, Radmilović VR, Janaćković Đ. Highly Active Rutile TiO2 Nanocrystalline Photocatalysts. in ACS Applied Materials & Interfaces. 2020;12(29):33058-33068.
doi:10.1021/acsami.0c03150 .
Đokić, Veljko, Marinković, Aleksandar, Petrović, Rada, Ersen, Ovidiu, Zafeiratos, Spyridon, Mitrić, Miodrag, Ophus, Colin, Radmilović, Velimir R., Janaćković, Đorđe, "Highly Active Rutile TiO2 Nanocrystalline Photocatalysts" in ACS Applied Materials & Interfaces, 12, no. 29 (2020):33058-33068,
https://doi.org/10.1021/acsami.0c03150 . .
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40

Step-controlled Brownian motion of nanosized liquid Pb inclusions in a solid Al matrix

Radetić, Tamara; Johnson, E.; Olmsted, D. L.; Yang, Yang; Laird, B. B.; Asta, M.; Dahmen, U.

(Pergamon-Elsevier Science Ltd, Oxford, 2017)

TY  - JOUR
AU  - Radetić, Tamara
AU  - Johnson, E.
AU  - Olmsted, D. L.
AU  - Yang, Yang
AU  - Laird, B. B.
AU  - Asta, M.
AU  - Dahmen, U.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3618
AB  - We have made direct observations of the Brownian motion of individual nanosized liquid lead inclusions in solid aluminum by in-situ transmission electron microscopy. The process was found to depend strongly on the size of the inclusion and the anisotropy of the interfacial energy. The rate controlling mechanism was the nucleation of steps on facets of the equilibrium shape and the diffusion of Al along the liquid-solid interface. Because the Al-Pb interface undergoes a roughening transition at T-r approximate to 820 K, the step nucleation barrier decreases with increasing temperature and vanishes completely at Tr. By including the temperature dependence explicitly, we demonstrate that the contribution of the step energy to an Arrhenius plot of the data has a slope greater than the actual activation energy at temperature T by a factor T-r/(T-r-T). In addition, we show that the diffusion barrier for interfacial transport makes a substantial contribution. Our analysis reconciles a large discrepancy between activation energies obtained from the temperature and size dependences of the process and solves the apparent paradox posed by the observation that some particles are frozen in non-equilibrium shapes while nearby smaller particles are sufficiently mobile to undergo rapid Brownian motion.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Acta Materialia
T1  - Step-controlled Brownian motion of nanosized liquid Pb inclusions in a solid Al matrix
EP  - 433
SP  - 427
VL  - 141
DO  - 10.1016/j.actamat.2017.09.040
ER  - 
@article{
author = "Radetić, Tamara and Johnson, E. and Olmsted, D. L. and Yang, Yang and Laird, B. B. and Asta, M. and Dahmen, U.",
year = "2017",
abstract = "We have made direct observations of the Brownian motion of individual nanosized liquid lead inclusions in solid aluminum by in-situ transmission electron microscopy. The process was found to depend strongly on the size of the inclusion and the anisotropy of the interfacial energy. The rate controlling mechanism was the nucleation of steps on facets of the equilibrium shape and the diffusion of Al along the liquid-solid interface. Because the Al-Pb interface undergoes a roughening transition at T-r approximate to 820 K, the step nucleation barrier decreases with increasing temperature and vanishes completely at Tr. By including the temperature dependence explicitly, we demonstrate that the contribution of the step energy to an Arrhenius plot of the data has a slope greater than the actual activation energy at temperature T by a factor T-r/(T-r-T). In addition, we show that the diffusion barrier for interfacial transport makes a substantial contribution. Our analysis reconciles a large discrepancy between activation energies obtained from the temperature and size dependences of the process and solves the apparent paradox posed by the observation that some particles are frozen in non-equilibrium shapes while nearby smaller particles are sufficiently mobile to undergo rapid Brownian motion.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Acta Materialia",
title = "Step-controlled Brownian motion of nanosized liquid Pb inclusions in a solid Al matrix",
pages = "433-427",
volume = "141",
doi = "10.1016/j.actamat.2017.09.040"
}
Radetić, T., Johnson, E., Olmsted, D. L., Yang, Y., Laird, B. B., Asta, M.,& Dahmen, U.. (2017). Step-controlled Brownian motion of nanosized liquid Pb inclusions in a solid Al matrix. in Acta Materialia
Pergamon-Elsevier Science Ltd, Oxford., 141, 427-433.
https://doi.org/10.1016/j.actamat.2017.09.040
Radetić T, Johnson E, Olmsted DL, Yang Y, Laird BB, Asta M, Dahmen U. Step-controlled Brownian motion of nanosized liquid Pb inclusions in a solid Al matrix. in Acta Materialia. 2017;141:427-433.
doi:10.1016/j.actamat.2017.09.040 .
Radetić, Tamara, Johnson, E., Olmsted, D. L., Yang, Yang, Laird, B. B., Asta, M., Dahmen, U., "Step-controlled Brownian motion of nanosized liquid Pb inclusions in a solid Al matrix" in Acta Materialia, 141 (2017):427-433,
https://doi.org/10.1016/j.actamat.2017.09.040 . .
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12
7
12

Structure and Properties of Polymer Nanocomposite Films With Carbon Nanotubes and Graphene

Radmilović, Vuk; Carraro, Carlo; Uskoković, Petar; Radmilović, Velimir R.

(Wiley, Hoboken, 2017)

TY  - JOUR
AU  - Radmilović, Vuk
AU  - Carraro, Carlo
AU  - Uskoković, Petar
AU  - Radmilović, Velimir R.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3551
AB  - In this report, we demonstrate a simple fabrication route for polyvinyl butyral (PVB)-based nanocomposites with carbon nanotubes and graphene. In spite of insufficient percolation threshold due to low concentration of carbonaceous nanofillers, in the amount of 1 wt%, significant improvement of electrical and mechanical properties with negligible deterioration of optical properties for the polymer PVB matrix can be achieved. Both hardness and modulus increase and electrical resistivity and transmittance decrease in this order: PVB + multi-wall carbon nanotubes (MWCNT) double right arrow PVB+single-wall carbon nanotubes (SWCNT) double right arrow PVB + graphene. The largest values of reduced modulus and hardness are observed for the PVB + graphene nanocomposite, obtained by nanoindentation. Transmittance is similar to 84%, 86%, 89%, and 91% at 370 nm, and at 550 nm is similar to 84%, 88%, 90%, and 92%, for PVB + graphene, PVB+MWCNT, PVB + SWCNT, and pure PVB, respectively. The highest resistivity of 4 x 10(4) Omega cm is exhibited by the PVB + MWCNT nanocomposite while the lowest, 1.9 x 10(3) Omega cm, is exhibited by the PVB + graphene. Nanocomposite films are fabricated by a simple processing route using ultrasonic mixing and spin coating.
PB  - Wiley, Hoboken
T2  - Polymer Composites
T1  - Structure and Properties of Polymer Nanocomposite Films With Carbon Nanotubes and Graphene
EP  - E497
SP  - E490
VL  - 38
DO  - 10.1002/pc.24079
ER  - 
@article{
author = "Radmilović, Vuk and Carraro, Carlo and Uskoković, Petar and Radmilović, Velimir R.",
year = "2017",
abstract = "In this report, we demonstrate a simple fabrication route for polyvinyl butyral (PVB)-based nanocomposites with carbon nanotubes and graphene. In spite of insufficient percolation threshold due to low concentration of carbonaceous nanofillers, in the amount of 1 wt%, significant improvement of electrical and mechanical properties with negligible deterioration of optical properties for the polymer PVB matrix can be achieved. Both hardness and modulus increase and electrical resistivity and transmittance decrease in this order: PVB + multi-wall carbon nanotubes (MWCNT) double right arrow PVB+single-wall carbon nanotubes (SWCNT) double right arrow PVB + graphene. The largest values of reduced modulus and hardness are observed for the PVB + graphene nanocomposite, obtained by nanoindentation. Transmittance is similar to 84%, 86%, 89%, and 91% at 370 nm, and at 550 nm is similar to 84%, 88%, 90%, and 92%, for PVB + graphene, PVB+MWCNT, PVB + SWCNT, and pure PVB, respectively. The highest resistivity of 4 x 10(4) Omega cm is exhibited by the PVB + MWCNT nanocomposite while the lowest, 1.9 x 10(3) Omega cm, is exhibited by the PVB + graphene. Nanocomposite films are fabricated by a simple processing route using ultrasonic mixing and spin coating.",
publisher = "Wiley, Hoboken",
journal = "Polymer Composites",
title = "Structure and Properties of Polymer Nanocomposite Films With Carbon Nanotubes and Graphene",
pages = "E497-E490",
volume = "38",
doi = "10.1002/pc.24079"
}
Radmilović, V., Carraro, C., Uskoković, P.,& Radmilović, V. R.. (2017). Structure and Properties of Polymer Nanocomposite Films With Carbon Nanotubes and Graphene. in Polymer Composites
Wiley, Hoboken., 38, E490-E497.
https://doi.org/10.1002/pc.24079
Radmilović V, Carraro C, Uskoković P, Radmilović VR. Structure and Properties of Polymer Nanocomposite Films With Carbon Nanotubes and Graphene. in Polymer Composites. 2017;38:E490-E497.
doi:10.1002/pc.24079 .
Radmilović, Vuk, Carraro, Carlo, Uskoković, Petar, Radmilović, Velimir R., "Structure and Properties of Polymer Nanocomposite Films With Carbon Nanotubes and Graphene" in Polymer Composites, 38 (2017):E490-E497,
https://doi.org/10.1002/pc.24079 . .
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Low temperature solid-state wetting and formation of nanowelds in silver nanowires

Radmilović, Vuk; Goebelt, Manuela; Ophus, Colin; Christiansen, Silke; Spiecker, Erdmann; Radmilović, Velimir R.

(IOP Publishing Ltd, Bristol, 2017)

TY  - JOUR
AU  - Radmilović, Vuk
AU  - Goebelt, Manuela
AU  - Ophus, Colin
AU  - Christiansen, Silke
AU  - Spiecker, Erdmann
AU  - Radmilović, Velimir R.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3633
AB  - This article focuses on the microscopic mechanism of thermally induced nanoweld formation between silver nanowires (AgNWs) which is a key process for improving electrical conductivity in NW networks employed for transparent electrodes. Focused ion beam sectioning and transmission electron microscopy were applied in order to elucidate the atomic structure of a welded NW including measurement of the wetting contact angle and characterization of defect structure with atomic accuracy, which provides fundamental information on the welding mechanism. Crystal lattice strain, obtained by direct evaluation of atomic column displacements in high resolution scanning transmission electron microscopy images, was shown to be non-uniform among the five twin segments of the AgNW pentagonal structure. It was found that the pentagonal cross-sectional morphology of AgNWs has a dominant effect on the formation of nanowelds by controlling initial wetting as well as diffusion of Ag atoms between the NWs. Due to complete solid-state wetting, at an angle of similar to 4.8 degrees, the welding process starts with homoepitaxial nucleation of an initial Ag layer on (100) surface facets, considered to have an infinitely large radius of curvature. However, the strong driving force for this process due to the Gibbs-Thomson effect, requires the NW contact to occur through the corner of the pentagonal cross-section of the second NW providing a small radius of curvature. After the initial layer is formed, the welded zone continues to grow and extends out epitaxially to the neighboring twin segments.
PB  - IOP Publishing Ltd, Bristol
T2  - Nanotechnology
T1  - Low temperature solid-state wetting and formation of nanowelds in silver nanowires
IS  - 38
VL  - 28
DO  - 10.1088/1361-6528/aa7eb8
ER  - 
@article{
author = "Radmilović, Vuk and Goebelt, Manuela and Ophus, Colin and Christiansen, Silke and Spiecker, Erdmann and Radmilović, Velimir R.",
year = "2017",
abstract = "This article focuses on the microscopic mechanism of thermally induced nanoweld formation between silver nanowires (AgNWs) which is a key process for improving electrical conductivity in NW networks employed for transparent electrodes. Focused ion beam sectioning and transmission electron microscopy were applied in order to elucidate the atomic structure of a welded NW including measurement of the wetting contact angle and characterization of defect structure with atomic accuracy, which provides fundamental information on the welding mechanism. Crystal lattice strain, obtained by direct evaluation of atomic column displacements in high resolution scanning transmission electron microscopy images, was shown to be non-uniform among the five twin segments of the AgNW pentagonal structure. It was found that the pentagonal cross-sectional morphology of AgNWs has a dominant effect on the formation of nanowelds by controlling initial wetting as well as diffusion of Ag atoms between the NWs. Due to complete solid-state wetting, at an angle of similar to 4.8 degrees, the welding process starts with homoepitaxial nucleation of an initial Ag layer on (100) surface facets, considered to have an infinitely large radius of curvature. However, the strong driving force for this process due to the Gibbs-Thomson effect, requires the NW contact to occur through the corner of the pentagonal cross-section of the second NW providing a small radius of curvature. After the initial layer is formed, the welded zone continues to grow and extends out epitaxially to the neighboring twin segments.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Nanotechnology",
title = "Low temperature solid-state wetting and formation of nanowelds in silver nanowires",
number = "38",
volume = "28",
doi = "10.1088/1361-6528/aa7eb8"
}
Radmilović, V., Goebelt, M., Ophus, C., Christiansen, S., Spiecker, E.,& Radmilović, V. R.. (2017). Low temperature solid-state wetting and formation of nanowelds in silver nanowires. in Nanotechnology
IOP Publishing Ltd, Bristol., 28(38).
https://doi.org/10.1088/1361-6528/aa7eb8
Radmilović V, Goebelt M, Ophus C, Christiansen S, Spiecker E, Radmilović VR. Low temperature solid-state wetting and formation of nanowelds in silver nanowires. in Nanotechnology. 2017;28(38).
doi:10.1088/1361-6528/aa7eb8 .
Radmilović, Vuk, Goebelt, Manuela, Ophus, Colin, Christiansen, Silke, Spiecker, Erdmann, Radmilović, Velimir R., "Low temperature solid-state wetting and formation of nanowelds in silver nanowires" in Nanotechnology, 28, no. 38 (2017),
https://doi.org/10.1088/1361-6528/aa7eb8 . .
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Influence of annealing temperature on sensitisation behaviour and corrosion properties of an Al-6.8wt% Mg alloy

Radetić, Tamara; Popović, Miljana; Jegdić, Bore; Romhanji, Endre

(Wiley-VCH Verlag Gmbh, Weinheim, 2016)

TY  - JOUR
AU  - Radetić, Tamara
AU  - Popović, Miljana
AU  - Jegdić, Bore
AU  - Romhanji, Endre
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3335
AB  - Influence of annealing temperature on beta-(Al3Mg2) phase precipitation and corrosion properties of sensitised Al-6.8wt% Mg alloy is investigated. Sensitisation of specimens annealed at 320 degrees C results in IGC and SCC susceptibility. Microstructural characterization shows fine precipitation of Mg-rich phase forming nearly continuous film at grain boundaries, despite small precipitated fraction (0.5%), and grain boundary faceting. Sensitised specimens annealed at 265 degrees C are IGC susceptible, but SCC resistant. Precipitation at grain boundaries is discrete, although the precipitated fraction is greater (3%) than in specimens annealed at 320 degrees C. Potentiodynamic measurements show that of all measured parameters, charge density is in the strongest correlation with the NAMLT and SSRT results.
PB  - Wiley-VCH Verlag Gmbh, Weinheim
T2  - Materials and Corrosion-Werkstoffe Und Korrosion
T1  - Influence of annealing temperature on sensitisation behaviour and corrosion properties of an Al-6.8wt% Mg alloy
EP  - 875
IS  - 8
SP  - 867
VL  - 67
DO  - 10.1002/maco.201508709
ER  - 
@article{
author = "Radetić, Tamara and Popović, Miljana and Jegdić, Bore and Romhanji, Endre",
year = "2016",
abstract = "Influence of annealing temperature on beta-(Al3Mg2) phase precipitation and corrosion properties of sensitised Al-6.8wt% Mg alloy is investigated. Sensitisation of specimens annealed at 320 degrees C results in IGC and SCC susceptibility. Microstructural characterization shows fine precipitation of Mg-rich phase forming nearly continuous film at grain boundaries, despite small precipitated fraction (0.5%), and grain boundary faceting. Sensitised specimens annealed at 265 degrees C are IGC susceptible, but SCC resistant. Precipitation at grain boundaries is discrete, although the precipitated fraction is greater (3%) than in specimens annealed at 320 degrees C. Potentiodynamic measurements show that of all measured parameters, charge density is in the strongest correlation with the NAMLT and SSRT results.",
publisher = "Wiley-VCH Verlag Gmbh, Weinheim",
journal = "Materials and Corrosion-Werkstoffe Und Korrosion",
title = "Influence of annealing temperature on sensitisation behaviour and corrosion properties of an Al-6.8wt% Mg alloy",
pages = "875-867",
number = "8",
volume = "67",
doi = "10.1002/maco.201508709"
}
Radetić, T., Popović, M., Jegdić, B.,& Romhanji, E.. (2016). Influence of annealing temperature on sensitisation behaviour and corrosion properties of an Al-6.8wt% Mg alloy. in Materials and Corrosion-Werkstoffe Und Korrosion
Wiley-VCH Verlag Gmbh, Weinheim., 67(8), 867-875.
https://doi.org/10.1002/maco.201508709
Radetić T, Popović M, Jegdić B, Romhanji E. Influence of annealing temperature on sensitisation behaviour and corrosion properties of an Al-6.8wt% Mg alloy. in Materials and Corrosion-Werkstoffe Und Korrosion. 2016;67(8):867-875.
doi:10.1002/maco.201508709 .
Radetić, Tamara, Popović, Miljana, Jegdić, Bore, Romhanji, Endre, "Influence of annealing temperature on sensitisation behaviour and corrosion properties of an Al-6.8wt% Mg alloy" in Materials and Corrosion-Werkstoffe Und Korrosion, 67, no. 8 (2016):867-875,
https://doi.org/10.1002/maco.201508709 . .
6
4
6

Multiple Twinning and Stacking Faults in Silver Dendrites

Radmilović, Vuk; Kacher, Josh; Ivanović, Evica; Minor, Andrew M.; Radmilović, Velimir R.

(Amer Chemical Soc, Washington, 2016)

TY  - JOUR
AU  - Radmilović, Vuk
AU  - Kacher, Josh
AU  - Ivanović, Evica
AU  - Minor, Andrew M.
AU  - Radmilović, Velimir R.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3410
AB  - Detailed defect structure of dendrite formation was studied in order to connect the mesoscopic with the atomistic structure. It was demonstrated that twinning and stacking fault formation play a central role in the growth of electrodeposited Ag dendrites. The broad faces of Ag dendrites and the main trunk growth direction were found to be ((1) over bar 11) and [(1) over bar1 (2) over bar], respectively. Dendrite branches also formed and grew from the main trunk parallel to the [12 (1) over bar] and [(211) over bar] crystallographic directions. Twins and stacking faults were found to reside on the {111} crystallographic planes, as expected for a face centered cubic (FCC) Ag crystal. Using electron back scattered diffraction (EBSD) we found two variants of in-plane 60 degrees rotational twin domains in the ((1) over bar 11) broad dendrite surface plane. The intersections of twins and stacking faults with dendrite arm surfaces are perpendicular to the (112) arm growth directions. However, occasionally twins on the {111} planes parallel to the (112) arm growth directions were also observed. Although defect assisted dendrite growth is facilitated by twinning and stacking fault formation on {111} planes, the growth directions of the trunk and branches are not of the (111) type, but rather close to (112). The (112) growth directions are maintained by breaking dendrite facets into thermodynamically stable 111 and 200 steps and structural ledges of different length.
PB  - Amer Chemical Soc, Washington
T2  - Crystal Growth & Design
T1  - Multiple Twinning and Stacking Faults in Silver Dendrites
EP  - 474
IS  - 1
SP  - 467
VL  - 16
DO  - 10.1021/acs.cgd.5b01459
ER  - 
@article{
author = "Radmilović, Vuk and Kacher, Josh and Ivanović, Evica and Minor, Andrew M. and Radmilović, Velimir R.",
year = "2016",
abstract = "Detailed defect structure of dendrite formation was studied in order to connect the mesoscopic with the atomistic structure. It was demonstrated that twinning and stacking fault formation play a central role in the growth of electrodeposited Ag dendrites. The broad faces of Ag dendrites and the main trunk growth direction were found to be ((1) over bar 11) and [(1) over bar1 (2) over bar], respectively. Dendrite branches also formed and grew from the main trunk parallel to the [12 (1) over bar] and [(211) over bar] crystallographic directions. Twins and stacking faults were found to reside on the {111} crystallographic planes, as expected for a face centered cubic (FCC) Ag crystal. Using electron back scattered diffraction (EBSD) we found two variants of in-plane 60 degrees rotational twin domains in the ((1) over bar 11) broad dendrite surface plane. The intersections of twins and stacking faults with dendrite arm surfaces are perpendicular to the (112) arm growth directions. However, occasionally twins on the {111} planes parallel to the (112) arm growth directions were also observed. Although defect assisted dendrite growth is facilitated by twinning and stacking fault formation on {111} planes, the growth directions of the trunk and branches are not of the (111) type, but rather close to (112). The (112) growth directions are maintained by breaking dendrite facets into thermodynamically stable 111 and 200 steps and structural ledges of different length.",
publisher = "Amer Chemical Soc, Washington",
journal = "Crystal Growth & Design",
title = "Multiple Twinning and Stacking Faults in Silver Dendrites",
pages = "474-467",
number = "1",
volume = "16",
doi = "10.1021/acs.cgd.5b01459"
}
Radmilović, V., Kacher, J., Ivanović, E., Minor, A. M.,& Radmilović, V. R.. (2016). Multiple Twinning and Stacking Faults in Silver Dendrites. in Crystal Growth & Design
Amer Chemical Soc, Washington., 16(1), 467-474.
https://doi.org/10.1021/acs.cgd.5b01459
Radmilović V, Kacher J, Ivanović E, Minor AM, Radmilović VR. Multiple Twinning and Stacking Faults in Silver Dendrites. in Crystal Growth & Design. 2016;16(1):467-474.
doi:10.1021/acs.cgd.5b01459 .
Radmilović, Vuk, Kacher, Josh, Ivanović, Evica, Minor, Andrew M., Radmilović, Velimir R., "Multiple Twinning and Stacking Faults in Silver Dendrites" in Crystal Growth & Design, 16, no. 1 (2016):467-474,
https://doi.org/10.1021/acs.cgd.5b01459 . .
13
11
14

Platinum nanocatalysts on metal oxide based supports for low temperature fuel cell applications

Elezović, Nevenka R.; Radmilović, Velimir R; Krstajić, Nedeljko V

(Royal Soc Chemistry, Cambridge, 2016)

TY  - JOUR
AU  - Elezović, Nevenka R.
AU  - Radmilović, Velimir R
AU  - Krstajić, Nedeljko V
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5834
AB  - In this manuscript a survey of the contemporary research related to platinum nanocatalysts on metal oxide based supports for low temperature fuel cell applications is presented. Different carbon based supports, used as state of the art materials, are listed and discussed, as well. Although carbon based materials possess many desirable properties, such as high surface area, high conductivity and relatively low cost and easy synthesis, the large scale commercialization is limited by instability under accelerated stability testing, simulating real fuel cell operating conditions. To overcome these disadvantages of carbon supports, different metal oxide based ones have been studied and promising results are referenced. The most often used oxide based supports for low temperature fuel cell applications are presented in this review. Suitable discussion and future research related remarks are given, as well.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Platinum nanocatalysts on metal oxide based supports for low temperature fuel cell applications
EP  - 6801
IS  - 8
SP  - 6788
VL  - 6
DO  - 10.1039/C5RA22403A
ER  - 
@article{
author = "Elezović, Nevenka R. and Radmilović, Velimir R and Krstajić, Nedeljko V",
year = "2016",
abstract = "In this manuscript a survey of the contemporary research related to platinum nanocatalysts on metal oxide based supports for low temperature fuel cell applications is presented. Different carbon based supports, used as state of the art materials, are listed and discussed, as well. Although carbon based materials possess many desirable properties, such as high surface area, high conductivity and relatively low cost and easy synthesis, the large scale commercialization is limited by instability under accelerated stability testing, simulating real fuel cell operating conditions. To overcome these disadvantages of carbon supports, different metal oxide based ones have been studied and promising results are referenced. The most often used oxide based supports for low temperature fuel cell applications are presented in this review. Suitable discussion and future research related remarks are given, as well.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Platinum nanocatalysts on metal oxide based supports for low temperature fuel cell applications",
pages = "6801-6788",
number = "8",
volume = "6",
doi = "10.1039/C5RA22403A"
}
Elezović, N. R., Radmilović, V. R.,& Krstajić, N. V.. (2016). Platinum nanocatalysts on metal oxide based supports for low temperature fuel cell applications. in RSC Advances
Royal Soc Chemistry, Cambridge., 6(8), 6788-6801.
https://doi.org/10.1039/C5RA22403A
Elezović NR, Radmilović VR, Krstajić NV. Platinum nanocatalysts on metal oxide based supports for low temperature fuel cell applications. in RSC Advances. 2016;6(8):6788-6801.
doi:10.1039/C5RA22403A .
Elezović, Nevenka R., Radmilović, Velimir R, Krstajić, Nedeljko V, "Platinum nanocatalysts on metal oxide based supports for low temperature fuel cell applications" in RSC Advances, 6, no. 8 (2016):6788-6801,
https://doi.org/10.1039/C5RA22403A . .
71
32
72

Investigation of supramolecular architectures of bent-shaped pyridine derivatives: from a three-ring crystalline compound towards five-ring mesogens

Trišović, Nemanja; Antanasijević, Jelena; Rogan, Jelena; Poleti, Dejan; Toth-Katona, Tibor; Salamonczyk, Miroslaw; Jakli, Antal; Fodor-Csorba, Katatin

(Royal Soc Chemistry, Cambridge, 2016)

TY  - JOUR
AU  - Trišović, Nemanja
AU  - Antanasijević, Jelena
AU  - Rogan, Jelena
AU  - Poleti, Dejan
AU  - Toth-Katona, Tibor
AU  - Salamonczyk, Miroslaw
AU  - Jakli, Antal
AU  - Fodor-Csorba, Katatin
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3243
AB  - In search of novel photoactive liquid crystals, we have synthesized a series of five-ring pyridine-based bent-core compounds bearing different substituents at the peripheral phenyl rings (CH3O, Cl and NO2). Their mesomorphic behaviour has been investigated by polarizing optical microscopy, differential scanning calorimetry and X-ray scattering, and then compared with the unsubstituted parent compound. The introduction of the methoxy groups at the peripheral phenyl rings of the bent core results in a nonmesomorphic compound, whereas the chloro- and nitro-substituted compounds form enantiotropic B1-like phases. Significant changes in the textures and transition temperatures of the mesophase have been observed under UV tight. The present investigation of the mesomorphic properties of the synthesized compounds, coupled with the analysis of the molecular packing of the related three-ring compounds, will help design self-organized molecules suitable for UV indicators.
PB  - Royal Soc Chemistry, Cambridge
T2  - New Journal of Chemistry
T1  - Investigation of supramolecular architectures of bent-shaped pyridine derivatives: from a three-ring crystalline compound towards five-ring mesogens
EP  - 6985
IS  - 8
SP  - 6977
VL  - 40
DO  - 10.1039/c6nj01515h
ER  - 
@article{
author = "Trišović, Nemanja and Antanasijević, Jelena and Rogan, Jelena and Poleti, Dejan and Toth-Katona, Tibor and Salamonczyk, Miroslaw and Jakli, Antal and Fodor-Csorba, Katatin",
year = "2016",
abstract = "In search of novel photoactive liquid crystals, we have synthesized a series of five-ring pyridine-based bent-core compounds bearing different substituents at the peripheral phenyl rings (CH3O, Cl and NO2). Their mesomorphic behaviour has been investigated by polarizing optical microscopy, differential scanning calorimetry and X-ray scattering, and then compared with the unsubstituted parent compound. The introduction of the methoxy groups at the peripheral phenyl rings of the bent core results in a nonmesomorphic compound, whereas the chloro- and nitro-substituted compounds form enantiotropic B1-like phases. Significant changes in the textures and transition temperatures of the mesophase have been observed under UV tight. The present investigation of the mesomorphic properties of the synthesized compounds, coupled with the analysis of the molecular packing of the related three-ring compounds, will help design self-organized molecules suitable for UV indicators.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "New Journal of Chemistry",
title = "Investigation of supramolecular architectures of bent-shaped pyridine derivatives: from a three-ring crystalline compound towards five-ring mesogens",
pages = "6985-6977",
number = "8",
volume = "40",
doi = "10.1039/c6nj01515h"
}
Trišović, N., Antanasijević, J., Rogan, J., Poleti, D., Toth-Katona, T., Salamonczyk, M., Jakli, A.,& Fodor-Csorba, K.. (2016). Investigation of supramolecular architectures of bent-shaped pyridine derivatives: from a three-ring crystalline compound towards five-ring mesogens. in New Journal of Chemistry
Royal Soc Chemistry, Cambridge., 40(8), 6977-6985.
https://doi.org/10.1039/c6nj01515h
Trišović N, Antanasijević J, Rogan J, Poleti D, Toth-Katona T, Salamonczyk M, Jakli A, Fodor-Csorba K. Investigation of supramolecular architectures of bent-shaped pyridine derivatives: from a three-ring crystalline compound towards five-ring mesogens. in New Journal of Chemistry. 2016;40(8):6977-6985.
doi:10.1039/c6nj01515h .
Trišović, Nemanja, Antanasijević, Jelena, Rogan, Jelena, Poleti, Dejan, Toth-Katona, Tibor, Salamonczyk, Miroslaw, Jakli, Antal, Fodor-Csorba, Katatin, "Investigation of supramolecular architectures of bent-shaped pyridine derivatives: from a three-ring crystalline compound towards five-ring mesogens" in New Journal of Chemistry, 40, no. 8 (2016):6977-6985,
https://doi.org/10.1039/c6nj01515h . .
3
2

RuxTi1-xO2 as the support for Pt nanoparticles: Electrocatalysis of methanol oxidation

Obradović, Maja; Lačnjevac, Uroš; Babić, Biljana M.; Ercius, P.; Radmilović, Velimir R.; Krstajić, Nedeljko V.; Gojković, Snežana Lj.

(Elsevier, Amsterdam, 2015)

TY  - JOUR
AU  - Obradović, Maja
AU  - Lačnjevac, Uroš
AU  - Babić, Biljana M.
AU  - Ercius, P.
AU  - Radmilović, Velimir R.
AU  - Krstajić, Nedeljko V.
AU  - Gojković, Snežana Lj.
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2978
AB  - Two binary Ru-Ti oxides, Rum Ti0.9O2 and Ru0.7Ti0.3O2, were synthesized by the sol-gel method and used as an electrocatalyst support. The system was characterized by XRD, EDS, TEM and cyclic voltammetry. The Rum Ti0.9O2 and Ru0.7Ti0.3O2 consist of two phases of anatase and rutile structure. An average size of the Pt nanoparticles supported on them is similar to 3.5 nm and they are deposited on both Ru and Ti-rich domains. The supports exhibited good conductivity and electrochemical stability. The onset potentials of COads oxidation on the synthesized catalysts and on commercial PtRu/C are similar to each other and lower than that on Pt/C. This suggests that in Pt/Rum Ti0.9O2 and Pt/Ru0(.7)Ti(0.3)O(2) the Pt nanoparticles are in close contact with Ru atoms from the support, which enables the bifunctional mechanism. The activity and stability of the catalysts for methanol oxidation were examined under potentiodynamic and potentiostatic conditions. While the activity of Pt/Rum Ti0.9O2 is unsatisfactory, the performance of Pt/Ru0.7Ti0.3O2 is comparable to PtRu/C. For example, in the potentiostatic test at 0.5 V the activities after 25 min are 0.035 mA cm(-2) and 0.022 mA cm(-2) for Pt/Ru0.7Ti0.3O2 and PtRu/C, respectively. In potentiodynamic test the activities at 0.5V after 250 cycles are around 0.02 mA cm(-2) for both catalysts.
PB  - Elsevier, Amsterdam
T2  - Applied Catalysis B-Environmental
T1  - RuxTi1-xO2 as the support for Pt nanoparticles: Electrocatalysis of methanol oxidation
EP  - 152
SP  - 144
VL  - 170
DO  - 10.1016/j.apcatb.2015.01.038
ER  - 
@article{
author = "Obradović, Maja and Lačnjevac, Uroš and Babić, Biljana M. and Ercius, P. and Radmilović, Velimir R. and Krstajić, Nedeljko V. and Gojković, Snežana Lj.",
year = "2015",
abstract = "Two binary Ru-Ti oxides, Rum Ti0.9O2 and Ru0.7Ti0.3O2, were synthesized by the sol-gel method and used as an electrocatalyst support. The system was characterized by XRD, EDS, TEM and cyclic voltammetry. The Rum Ti0.9O2 and Ru0.7Ti0.3O2 consist of two phases of anatase and rutile structure. An average size of the Pt nanoparticles supported on them is similar to 3.5 nm and they are deposited on both Ru and Ti-rich domains. The supports exhibited good conductivity and electrochemical stability. The onset potentials of COads oxidation on the synthesized catalysts and on commercial PtRu/C are similar to each other and lower than that on Pt/C. This suggests that in Pt/Rum Ti0.9O2 and Pt/Ru0(.7)Ti(0.3)O(2) the Pt nanoparticles are in close contact with Ru atoms from the support, which enables the bifunctional mechanism. The activity and stability of the catalysts for methanol oxidation were examined under potentiodynamic and potentiostatic conditions. While the activity of Pt/Rum Ti0.9O2 is unsatisfactory, the performance of Pt/Ru0.7Ti0.3O2 is comparable to PtRu/C. For example, in the potentiostatic test at 0.5 V the activities after 25 min are 0.035 mA cm(-2) and 0.022 mA cm(-2) for Pt/Ru0.7Ti0.3O2 and PtRu/C, respectively. In potentiodynamic test the activities at 0.5V after 250 cycles are around 0.02 mA cm(-2) for both catalysts.",
publisher = "Elsevier, Amsterdam",
journal = "Applied Catalysis B-Environmental",
title = "RuxTi1-xO2 as the support for Pt nanoparticles: Electrocatalysis of methanol oxidation",
pages = "152-144",
volume = "170",
doi = "10.1016/j.apcatb.2015.01.038"
}
Obradović, M., Lačnjevac, U., Babić, B. M., Ercius, P., Radmilović, V. R., Krstajić, N. V.,& Gojković, S. Lj.. (2015). RuxTi1-xO2 as the support for Pt nanoparticles: Electrocatalysis of methanol oxidation. in Applied Catalysis B-Environmental
Elsevier, Amsterdam., 170, 144-152.
https://doi.org/10.1016/j.apcatb.2015.01.038
Obradović M, Lačnjevac U, Babić BM, Ercius P, Radmilović VR, Krstajić NV, Gojković SL. RuxTi1-xO2 as the support for Pt nanoparticles: Electrocatalysis of methanol oxidation. in Applied Catalysis B-Environmental. 2015;170:144-152.
doi:10.1016/j.apcatb.2015.01.038 .
Obradović, Maja, Lačnjevac, Uroš, Babić, Biljana M., Ercius, P., Radmilović, Velimir R., Krstajić, Nedeljko V., Gojković, Snežana Lj., "RuxTi1-xO2 as the support for Pt nanoparticles: Electrocatalysis of methanol oxidation" in Applied Catalysis B-Environmental, 170 (2015):144-152,
https://doi.org/10.1016/j.apcatb.2015.01.038 . .
25
20
23

Synthesis and characterization of Pt nanocatalyst on Ru0.7Ti0.3O2 support as a cathode for fuel cells application

Elezović, Nevenka R.; Ercius, P.; Kovac, Janez; Radmilović, Velimir R; Babić, Biljana M.; Krstajić, Nedeljko V

(Elsevier Science Sa, Lausanne, 2015)

TY  - JOUR
AU  - Elezović, Nevenka R.
AU  - Ercius, P.
AU  - Kovac, Janez
AU  - Radmilović, Velimir R
AU  - Babić, Biljana M.
AU  - Krstajić, Nedeljko V
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5799
AB  - Ruthenium oxide/titanium oxide, with a Ru:Ti atomic ratio of 7:3 was synthesized by modified sol-gel procedure and used as a support for platinum nanocatalyst for oxygen reduction reaction. The synthesized materials were characterized in terms of morphology, particle size distribution, chemical and phase composition by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), high angle annular dark filed scanning transmission electron microscopy (HAADF, STEM) and electron energy loss spectroscopy (EELS). XPS spectra revealed that Ru atoms were in mainly in Ru(4+) oxidation state, the Ti atoms in Ti(4+) oxidation state, whereas the Pt-atoms were in metallic state. TEM analysis proved that platinum nanoparticles nucleated at both oxide species and homogeneous distribution was observed. The average platinum nanoparticle size was 3.05 nm. Electrochemically active surface area of platinum was 32 m(2) g(-1). Kinetics of the oxygen reduction was studied at rotating disc electrode in 0.5 mol dm(-3) HClO4 solution, at 25 degrees C. The catalytic activities expressed in terms of specific activity (per electrochemically active surface area of platinum) and mass activity (per mass of platinum) were determined and compared to Pt catalyst on carbon support. The high catalytic activity was proven by electrochemical characterization.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - Synthesis and characterization of Pt nanocatalyst on Ru0.7Ti0.3O2 support as a cathode for fuel cells application
EP  - 171
SP  - 164
VL  - 739
DO  - 10.1016/j.jelechem.2014.12.033
ER  - 
@article{
author = "Elezović, Nevenka R. and Ercius, P. and Kovac, Janez and Radmilović, Velimir R and Babić, Biljana M. and Krstajić, Nedeljko V",
year = "2015",
abstract = "Ruthenium oxide/titanium oxide, with a Ru:Ti atomic ratio of 7:3 was synthesized by modified sol-gel procedure and used as a support for platinum nanocatalyst for oxygen reduction reaction. The synthesized materials were characterized in terms of morphology, particle size distribution, chemical and phase composition by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), high angle annular dark filed scanning transmission electron microscopy (HAADF, STEM) and electron energy loss spectroscopy (EELS). XPS spectra revealed that Ru atoms were in mainly in Ru(4+) oxidation state, the Ti atoms in Ti(4+) oxidation state, whereas the Pt-atoms were in metallic state. TEM analysis proved that platinum nanoparticles nucleated at both oxide species and homogeneous distribution was observed. The average platinum nanoparticle size was 3.05 nm. Electrochemically active surface area of platinum was 32 m(2) g(-1). Kinetics of the oxygen reduction was studied at rotating disc electrode in 0.5 mol dm(-3) HClO4 solution, at 25 degrees C. The catalytic activities expressed in terms of specific activity (per electrochemically active surface area of platinum) and mass activity (per mass of platinum) were determined and compared to Pt catalyst on carbon support. The high catalytic activity was proven by electrochemical characterization.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "Synthesis and characterization of Pt nanocatalyst on Ru0.7Ti0.3O2 support as a cathode for fuel cells application",
pages = "171-164",
volume = "739",
doi = "10.1016/j.jelechem.2014.12.033"
}
Elezović, N. R., Ercius, P., Kovac, J., Radmilović, V. R., Babić, B. M.,& Krstajić, N. V.. (2015). Synthesis and characterization of Pt nanocatalyst on Ru0.7Ti0.3O2 support as a cathode for fuel cells application. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 739, 164-171.
https://doi.org/10.1016/j.jelechem.2014.12.033
Elezović NR, Ercius P, Kovac J, Radmilović VR, Babić BM, Krstajić NV. Synthesis and characterization of Pt nanocatalyst on Ru0.7Ti0.3O2 support as a cathode for fuel cells application. in Journal of Electroanalytical Chemistry. 2015;739:164-171.
doi:10.1016/j.jelechem.2014.12.033 .
Elezović, Nevenka R., Ercius, P., Kovac, Janez, Radmilović, Velimir R, Babić, Biljana M., Krstajić, Nedeljko V, "Synthesis and characterization of Pt nanocatalyst on Ru0.7Ti0.3O2 support as a cathode for fuel cells application" in Journal of Electroanalytical Chemistry, 739 (2015):164-171,
https://doi.org/10.1016/j.jelechem.2014.12.033 . .
5
4
5

Microstructure evolution of a modified AA5083 aluminum alloy during a multistage homogenization treatment

Radetić, Tamara; Popović, Miljana; Romhanji, Endre

(Elsevier Science Inc, New York, 2012)

TY  - JOUR
AU  - Radetić, Tamara
AU  - Popović, Miljana
AU  - Romhanji, Endre
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2210
AB  - The microstructure evolution of the industrially cast AA5083 modified aluminum alloy during the multistage homogenization treatment was investigated by means of optical, SEM and TEM imaging and microanalysis techniques. The effect of microsegregations on the precipitates structure was evaluated. Eutectic constituent Al-6(Fe,Mn) and Mg2Si particles form in interdendritic regions, while nu-Al-11(Mn,Cr)(4) dispersoids were observed in the dendrite cores. Homogenization treatments lead to a partial dissolution of the precipitates present in the as-cast state and formation of the new phases: rod-shaped Al-6(Mn,Fe) and Al18Mg3(Mn,Cr)(2) dispersoids in the dendrite cores. Published by Elsevier Inc.
PB  - Elsevier Science Inc, New York
T2  - Materials Characterization
T1  - Microstructure evolution of a modified AA5083 aluminum alloy during a multistage homogenization treatment
EP  - 27
SP  - 16
VL  - 65
DO  - 10.1016/j.matchar.2011.12.006
ER  - 
@article{
author = "Radetić, Tamara and Popović, Miljana and Romhanji, Endre",
year = "2012",
abstract = "The microstructure evolution of the industrially cast AA5083 modified aluminum alloy during the multistage homogenization treatment was investigated by means of optical, SEM and TEM imaging and microanalysis techniques. The effect of microsegregations on the precipitates structure was evaluated. Eutectic constituent Al-6(Fe,Mn) and Mg2Si particles form in interdendritic regions, while nu-Al-11(Mn,Cr)(4) dispersoids were observed in the dendrite cores. Homogenization treatments lead to a partial dissolution of the precipitates present in the as-cast state and formation of the new phases: rod-shaped Al-6(Mn,Fe) and Al18Mg3(Mn,Cr)(2) dispersoids in the dendrite cores. Published by Elsevier Inc.",
publisher = "Elsevier Science Inc, New York",
journal = "Materials Characterization",
title = "Microstructure evolution of a modified AA5083 aluminum alloy during a multistage homogenization treatment",
pages = "27-16",
volume = "65",
doi = "10.1016/j.matchar.2011.12.006"
}
Radetić, T., Popović, M.,& Romhanji, E.. (2012). Microstructure evolution of a modified AA5083 aluminum alloy during a multistage homogenization treatment. in Materials Characterization
Elsevier Science Inc, New York., 65, 16-27.
https://doi.org/10.1016/j.matchar.2011.12.006
Radetić T, Popović M, Romhanji E. Microstructure evolution of a modified AA5083 aluminum alloy during a multistage homogenization treatment. in Materials Characterization. 2012;65:16-27.
doi:10.1016/j.matchar.2011.12.006 .
Radetić, Tamara, Popović, Miljana, Romhanji, Endre, "Microstructure evolution of a modified AA5083 aluminum alloy during a multistage homogenization treatment" in Materials Characterization, 65 (2012):16-27,
https://doi.org/10.1016/j.matchar.2011.12.006 . .
54
41
60

Core-shell structured tungsten-tungsten carbide as a Pt catalyst support and its activity for methanol electrooxidation

Obradović, Maja; Babić, Biljana M.; Radmilović, Velimir R.; Krstajić, Nedeljko V.; Gojković, Snežana Lj.

(Pergamon-Elsevier Science Ltd, Oxford, 2012)

TY  - JOUR
AU  - Obradović, Maja
AU  - Babić, Biljana M.
AU  - Radmilović, Velimir R.
AU  - Krstajić, Nedeljko V.
AU  - Gojković, Snežana Lj.
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2142
AB  - Tungsten carbide was synthesized by calcination of carbon cryogel containing tungsten in a form of metatungstate. Characterization by X-ray diffraction and transmission electron microscopy indicated core-shell structure of the particles with tungsten core and tungsten carbide shell, attached to graphitized carbon. Pt nanoparticles were deposited on this material and most of them were nucleated on tungsten carbide. Cyclic voltammetry of W-C support and Pt/W-C catalyst indicated hydrogen intercalation in surface hydrous tungsten oxide. Oxidation of COads on Pt/W-C commences earlier than on Pt/C for about 100 mV. The onset potentials of MOR on Pt/W-C and Pt/C are the same, but at more positive potentials Pt/W-C catalyst is more active. It was proposed that promotion of MOR is based on bifunctional mechanism that facilitates COads removal. Stability test was performed by potential cycling of Pt/W-C and Pt/C in the supporting electrolyte and in the presence of methanol. Pt surface area loss observed in the supporting electrolyte of both catalysts after 250 cycles was about 20%. Decrease in the activity for methanol oxidation was 30% for Pt/W-C, but even 48% for Pt/C. The difference was explained by the presence of hydrous tungsten oxide on Pt in Pt/W-C catalyst, which reduces accumulation of poisoning COads.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - International Journal of Hydrogen Energy
T1  - Core-shell structured tungsten-tungsten carbide as a Pt catalyst support and its activity for methanol electrooxidation
EP  - 10679
IS  - 14
SP  - 10671
VL  - 37
DO  - 10.1016/j.ijhydene.2012.04.114
ER  - 
@article{
author = "Obradović, Maja and Babić, Biljana M. and Radmilović, Velimir R. and Krstajić, Nedeljko V. and Gojković, Snežana Lj.",
year = "2012",
abstract = "Tungsten carbide was synthesized by calcination of carbon cryogel containing tungsten in a form of metatungstate. Characterization by X-ray diffraction and transmission electron microscopy indicated core-shell structure of the particles with tungsten core and tungsten carbide shell, attached to graphitized carbon. Pt nanoparticles were deposited on this material and most of them were nucleated on tungsten carbide. Cyclic voltammetry of W-C support and Pt/W-C catalyst indicated hydrogen intercalation in surface hydrous tungsten oxide. Oxidation of COads on Pt/W-C commences earlier than on Pt/C for about 100 mV. The onset potentials of MOR on Pt/W-C and Pt/C are the same, but at more positive potentials Pt/W-C catalyst is more active. It was proposed that promotion of MOR is based on bifunctional mechanism that facilitates COads removal. Stability test was performed by potential cycling of Pt/W-C and Pt/C in the supporting electrolyte and in the presence of methanol. Pt surface area loss observed in the supporting electrolyte of both catalysts after 250 cycles was about 20%. Decrease in the activity for methanol oxidation was 30% for Pt/W-C, but even 48% for Pt/C. The difference was explained by the presence of hydrous tungsten oxide on Pt in Pt/W-C catalyst, which reduces accumulation of poisoning COads.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "International Journal of Hydrogen Energy",
title = "Core-shell structured tungsten-tungsten carbide as a Pt catalyst support and its activity for methanol electrooxidation",
pages = "10679-10671",
number = "14",
volume = "37",
doi = "10.1016/j.ijhydene.2012.04.114"
}
Obradović, M., Babić, B. M., Radmilović, V. R., Krstajić, N. V.,& Gojković, S. Lj.. (2012). Core-shell structured tungsten-tungsten carbide as a Pt catalyst support and its activity for methanol electrooxidation. in International Journal of Hydrogen Energy
Pergamon-Elsevier Science Ltd, Oxford., 37(14), 10671-10679.
https://doi.org/10.1016/j.ijhydene.2012.04.114
Obradović M, Babić BM, Radmilović VR, Krstajić NV, Gojković SL. Core-shell structured tungsten-tungsten carbide as a Pt catalyst support and its activity for methanol electrooxidation. in International Journal of Hydrogen Energy. 2012;37(14):10671-10679.
doi:10.1016/j.ijhydene.2012.04.114 .
Obradović, Maja, Babić, Biljana M., Radmilović, Velimir R., Krstajić, Nedeljko V., Gojković, Snežana Lj., "Core-shell structured tungsten-tungsten carbide as a Pt catalyst support and its activity for methanol electrooxidation" in International Journal of Hydrogen Energy, 37, no. 14 (2012):10671-10679,
https://doi.org/10.1016/j.ijhydene.2012.04.114 . .
20
21
23

Formic acid oxidation on Pt-Au nanoparticles: Relation between the catalyst activity and the poisoning rate

Obradović, Maja; Rogan, Jelena; Babić, Biljana M.; Tripković, Amalija; Gautam, A. R. S.; Radmilović, Velimir R.; Gojković, Snežana Lj.

(Elsevier Science Bv, Amsterdam, 2012)

TY  - JOUR
AU  - Obradović, Maja
AU  - Rogan, Jelena
AU  - Babić, Biljana M.
AU  - Tripković, Amalija
AU  - Gautam, A. R. S.
AU  - Radmilović, Velimir R.
AU  - Gojković, Snežana Lj.
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2242
AB  - Pt-Au nanoparticles supported on high area carbon were prepared by simultaneous reduction of Au and Pt precursors and by reduction of Pt precursor on already prepared Au nanoparticles. The first method produced a solid solution of Pt in Au containing similar to 5% Pt with the remaining Pt on the nanoparticles' surface. For the Pt:Au precursor ratio of 1:4 and 1:9, the surface ratio was found to be 0.70:0.30 and 0.55:0.45, respectively. By the second method with the Pt:Au precursors ratio of 1:12, the surface ratio was 0.30:0.70. The voltammetric peaks of Pt-oxide reduction and CO(ads) oxidation demonstrated electronic modification of Pt by Au in all catalysts. With decreasing Pt:Au surface ratio the activity for HCOOH oxidation increases and surface coverage by CO(ads) decreases. The highest activity under potentiodynamic and quasi steady-state conditions without poisoning by CO(ads) was observed for the catalyst with the lowest Pt:Au surface ratio. Chronoamperometic test showed that its high catalytic activity is associated with a high deactivation rate. It was postulated that too strong adsorption of a reactive or non-reactive intermediate caused by electron modification of Pt by underlying Au, is responsible for the deactivation. This result stresses that high Pt dispersion, necessary for promotion of the dehydrogenation path in HCOOH oxidation, can produce too strong adsorption of intermediates causing deactivation of the catalyst.
PB  - Elsevier Science Bv, Amsterdam
T2  - Journal of Power Sources
T1  - Formic acid oxidation on Pt-Au nanoparticles: Relation between the catalyst activity and the poisoning rate
EP  - 79
SP  - 72
VL  - 197
DO  - 10.1016/j.jpowsour.2011.09.043
ER  - 
@article{
author = "Obradović, Maja and Rogan, Jelena and Babić, Biljana M. and Tripković, Amalija and Gautam, A. R. S. and Radmilović, Velimir R. and Gojković, Snežana Lj.",
year = "2012",
abstract = "Pt-Au nanoparticles supported on high area carbon were prepared by simultaneous reduction of Au and Pt precursors and by reduction of Pt precursor on already prepared Au nanoparticles. The first method produced a solid solution of Pt in Au containing similar to 5% Pt with the remaining Pt on the nanoparticles' surface. For the Pt:Au precursor ratio of 1:4 and 1:9, the surface ratio was found to be 0.70:0.30 and 0.55:0.45, respectively. By the second method with the Pt:Au precursors ratio of 1:12, the surface ratio was 0.30:0.70. The voltammetric peaks of Pt-oxide reduction and CO(ads) oxidation demonstrated electronic modification of Pt by Au in all catalysts. With decreasing Pt:Au surface ratio the activity for HCOOH oxidation increases and surface coverage by CO(ads) decreases. The highest activity under potentiodynamic and quasi steady-state conditions without poisoning by CO(ads) was observed for the catalyst with the lowest Pt:Au surface ratio. Chronoamperometic test showed that its high catalytic activity is associated with a high deactivation rate. It was postulated that too strong adsorption of a reactive or non-reactive intermediate caused by electron modification of Pt by underlying Au, is responsible for the deactivation. This result stresses that high Pt dispersion, necessary for promotion of the dehydrogenation path in HCOOH oxidation, can produce too strong adsorption of intermediates causing deactivation of the catalyst.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Power Sources",
title = "Formic acid oxidation on Pt-Au nanoparticles: Relation between the catalyst activity and the poisoning rate",
pages = "79-72",
volume = "197",
doi = "10.1016/j.jpowsour.2011.09.043"
}
Obradović, M., Rogan, J., Babić, B. M., Tripković, A., Gautam, A. R. S., Radmilović, V. R.,& Gojković, S. Lj.. (2012). Formic acid oxidation on Pt-Au nanoparticles: Relation between the catalyst activity and the poisoning rate. in Journal of Power Sources
Elsevier Science Bv, Amsterdam., 197, 72-79.
https://doi.org/10.1016/j.jpowsour.2011.09.043
Obradović M, Rogan J, Babić BM, Tripković A, Gautam ARS, Radmilović VR, Gojković SL. Formic acid oxidation on Pt-Au nanoparticles: Relation between the catalyst activity and the poisoning rate. in Journal of Power Sources. 2012;197:72-79.
doi:10.1016/j.jpowsour.2011.09.043 .
Obradović, Maja, Rogan, Jelena, Babić, Biljana M., Tripković, Amalija, Gautam, A. R. S., Radmilović, Velimir R., Gojković, Snežana Lj., "Formic acid oxidation on Pt-Au nanoparticles: Relation between the catalyst activity and the poisoning rate" in Journal of Power Sources, 197 (2012):72-79,
https://doi.org/10.1016/j.jpowsour.2011.09.043 . .
44
39
48

Mechanism and dynamics of shrinking island grains in mazed bicrystal thin films of Au

Radetić, Tamara; Ophus, Colin; Olmsted, D. L.; Asta, M.; Dahmen, U.

(Pergamon-Elsevier Science Ltd, Oxford, 2012)

TY  - JOUR
AU  - Radetić, Tamara
AU  - Ophus, Colin
AU  - Olmsted, D. L.
AU  - Asta, M.
AU  - Dahmen, U.
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2150
AB  - This work investigates the mechanism and dynamics of grain boundary migration driven by capillary forces via in situ electron microscopy, complemented by molecular-dynamics simulations. Using thin films of Au with the mazed bicrystal geometry, the shrinkage of island grains with 90 degrees  lt  110  gt  tilt grain boundaries was observed by diffraction contrast and high-resolution imaging. The grains remained cylindrical throughout the shrinkage, and there was no measurable grain rotation even at very small sizes. The rate of shrinkage was found to be erratic and inconsistent with parabolic kinetics, accelerating before complete disappearance. Residual defects were found immediately after complete shrinkage, although the type and magnitude of the defects varied from grain to grain. Measurement of the grain boundary shape anisotropy showed a preference for facets on low-index planes of the crystals, including the mirror-symmetry planes of the bicrystal. These facets were also found directly on individual images extracted from high-resolution video recordings of shrinking grains at similar to 300 degrees C. The dynamics of boundary motion were found to be limited by nucleation and propagation of steps on these facets. The cylindrical geometry and size of the experimentally observed island grains allow direct comparison with molecular-dynamics simulations on the same length scale, which reproduced many of the experimentally observed features, including non-parabolic shrinkage, absence of systematic grain rotation, step-controlled migration and dislocation debris after complete grain shrinkage. Differences between model and experiment are discussed in terms of the possible role of impurities, surfaces and interfacial steps.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Acta Materialia
T1  - Mechanism and dynamics of shrinking island grains in mazed bicrystal thin films of Au
EP  - 7063
IS  - 20
SP  - 7051
VL  - 60
DO  - 10.1016/j.actamat.2012.09.012
ER  - 
@article{
author = "Radetić, Tamara and Ophus, Colin and Olmsted, D. L. and Asta, M. and Dahmen, U.",
year = "2012",
abstract = "This work investigates the mechanism and dynamics of grain boundary migration driven by capillary forces via in situ electron microscopy, complemented by molecular-dynamics simulations. Using thin films of Au with the mazed bicrystal geometry, the shrinkage of island grains with 90 degrees  lt  110  gt  tilt grain boundaries was observed by diffraction contrast and high-resolution imaging. The grains remained cylindrical throughout the shrinkage, and there was no measurable grain rotation even at very small sizes. The rate of shrinkage was found to be erratic and inconsistent with parabolic kinetics, accelerating before complete disappearance. Residual defects were found immediately after complete shrinkage, although the type and magnitude of the defects varied from grain to grain. Measurement of the grain boundary shape anisotropy showed a preference for facets on low-index planes of the crystals, including the mirror-symmetry planes of the bicrystal. These facets were also found directly on individual images extracted from high-resolution video recordings of shrinking grains at similar to 300 degrees C. The dynamics of boundary motion were found to be limited by nucleation and propagation of steps on these facets. The cylindrical geometry and size of the experimentally observed island grains allow direct comparison with molecular-dynamics simulations on the same length scale, which reproduced many of the experimentally observed features, including non-parabolic shrinkage, absence of systematic grain rotation, step-controlled migration and dislocation debris after complete grain shrinkage. Differences between model and experiment are discussed in terms of the possible role of impurities, surfaces and interfacial steps.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Acta Materialia",
title = "Mechanism and dynamics of shrinking island grains in mazed bicrystal thin films of Au",
pages = "7063-7051",
number = "20",
volume = "60",
doi = "10.1016/j.actamat.2012.09.012"
}
Radetić, T., Ophus, C., Olmsted, D. L., Asta, M.,& Dahmen, U.. (2012). Mechanism and dynamics of shrinking island grains in mazed bicrystal thin films of Au. in Acta Materialia
Pergamon-Elsevier Science Ltd, Oxford., 60(20), 7051-7063.
https://doi.org/10.1016/j.actamat.2012.09.012
Radetić T, Ophus C, Olmsted DL, Asta M, Dahmen U. Mechanism and dynamics of shrinking island grains in mazed bicrystal thin films of Au. in Acta Materialia. 2012;60(20):7051-7063.
doi:10.1016/j.actamat.2012.09.012 .
Radetić, Tamara, Ophus, Colin, Olmsted, D. L., Asta, M., Dahmen, U., "Mechanism and dynamics of shrinking island grains in mazed bicrystal thin films of Au" in Acta Materialia, 60, no. 20 (2012):7051-7063,
https://doi.org/10.1016/j.actamat.2012.09.012 . .
33
21
30

Multifunctional Properties of Polyester Fabrics Modified by Corona Discharge/Air RF Plasma and Colloidal TiO2 Nanoparticles

Mihailović, Darka; Šaponjić, Zoran; Molina, Ricardo; Radoičić, Marija B.; Esquena, J.; Jovančić, Petar; Nedeljković, Jovan; Radetić, Maja

(Wiley, Hoboken, 2011)

TY  - JOUR
AU  - Mihailović, Darka
AU  - Šaponjić, Zoran
AU  - Molina, Ricardo
AU  - Radoičić, Marija B.
AU  - Esquena, J.
AU  - Jovančić, Petar
AU  - Nedeljković, Jovan
AU  - Radetić, Maja
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1910
AB  - In this study the possibility of tailoring the textile nanocomposite materials based on the polyester fabric and TiO2 nanoparticles that can simultaneously provide desirable level of antibacterial activity, UV protection, and self-cleaning effects with long-term durability was investigated. To enhance the binding efficiency of colloidal TiO2 nanoparticles, the surface of polyester fabrics was activated by low-pressure RF air plasma, and corona discharge at atmospheric pressure. Obtained functionalized textile materials provided maximum antibacterial efficiency against gram-negative bacterium E. coli. High values of UV protection factor (UPF) indicate the maximum UV blocking efficiency (50+) of these fabrics. The results of self-cleaning test with blueberry juice stains and photodegradation of methylene blue in aqueous solution confirmed excellent photocatalytic activity of TiO2 nanoparticles deposited on the fiber surface. POLYM. COMPOS., 32:390-397, 2011.
PB  - Wiley, Hoboken
T2  - Polymer Composites
T1  - Multifunctional Properties of Polyester Fabrics Modified by Corona Discharge/Air RF Plasma and Colloidal TiO2 Nanoparticles
EP  - 397
IS  - 3
SP  - 390
VL  - 32
DO  - 10.1002/pc.21053
ER  - 
@article{
author = "Mihailović, Darka and Šaponjić, Zoran and Molina, Ricardo and Radoičić, Marija B. and Esquena, J. and Jovančić, Petar and Nedeljković, Jovan and Radetić, Maja",
year = "2011",
abstract = "In this study the possibility of tailoring the textile nanocomposite materials based on the polyester fabric and TiO2 nanoparticles that can simultaneously provide desirable level of antibacterial activity, UV protection, and self-cleaning effects with long-term durability was investigated. To enhance the binding efficiency of colloidal TiO2 nanoparticles, the surface of polyester fabrics was activated by low-pressure RF air plasma, and corona discharge at atmospheric pressure. Obtained functionalized textile materials provided maximum antibacterial efficiency against gram-negative bacterium E. coli. High values of UV protection factor (UPF) indicate the maximum UV blocking efficiency (50+) of these fabrics. The results of self-cleaning test with blueberry juice stains and photodegradation of methylene blue in aqueous solution confirmed excellent photocatalytic activity of TiO2 nanoparticles deposited on the fiber surface. POLYM. COMPOS., 32:390-397, 2011.",
publisher = "Wiley, Hoboken",
journal = "Polymer Composites",
title = "Multifunctional Properties of Polyester Fabrics Modified by Corona Discharge/Air RF Plasma and Colloidal TiO2 Nanoparticles",
pages = "397-390",
number = "3",
volume = "32",
doi = "10.1002/pc.21053"
}
Mihailović, D., Šaponjić, Z., Molina, R., Radoičić, M. B., Esquena, J., Jovančić, P., Nedeljković, J.,& Radetić, M.. (2011). Multifunctional Properties of Polyester Fabrics Modified by Corona Discharge/Air RF Plasma and Colloidal TiO2 Nanoparticles. in Polymer Composites
Wiley, Hoboken., 32(3), 390-397.
https://doi.org/10.1002/pc.21053
Mihailović D, Šaponjić Z, Molina R, Radoičić MB, Esquena J, Jovančić P, Nedeljković J, Radetić M. Multifunctional Properties of Polyester Fabrics Modified by Corona Discharge/Air RF Plasma and Colloidal TiO2 Nanoparticles. in Polymer Composites. 2011;32(3):390-397.
doi:10.1002/pc.21053 .
Mihailović, Darka, Šaponjić, Zoran, Molina, Ricardo, Radoičić, Marija B., Esquena, J., Jovančić, Petar, Nedeljković, Jovan, Radetić, Maja, "Multifunctional Properties of Polyester Fabrics Modified by Corona Discharge/Air RF Plasma and Colloidal TiO2 Nanoparticles" in Polymer Composites, 32, no. 3 (2011):390-397,
https://doi.org/10.1002/pc.21053 . .
27
19
33

Novel properties of PES fabrics modified by corona discharge and colloidal TiO2 nanoparticles

Mihailović, Darka; Šaponjić, Zoran; Radoičić, Marija B.; Molina, Ricardo; Radetić, Tamara; Jovančić, Petar; Nedeljković, Jovan; Radetić, Maja

(Wiley, Hoboken, 2011)

TY  - JOUR
AU  - Mihailović, Darka
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija B.
AU  - Molina, Ricardo
AU  - Radetić, Tamara
AU  - Jovančić, Petar
AU  - Nedeljković, Jovan
AU  - Radetić, Maja
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1953
AB  - The objective of this study was to highlight the potential application of the corona discharge at atmospheric pressure for the surface activation of polyester (PES) fabrics in order to improve the binding efficiency of colloidal TiO2 nanoparticles. The obtained nanocomposite textile materials provide desirable level of UV protection, self-cleaning properties, and photodegradation activity. The measured UV protection factor (UPF) of fabrics corresponds to UPF rating of 50+, designating the maximum UV protection. Additionally, the total photodegradation of methylene blue in aqueous solution was achieved after 24 hr of UV illumination and this capability was preserved and even improved after four repeated cycles. The results showed that the corona treated PES fabrics loaded with TiO2 nanoparticles had considerably enhanced the overall efficiency compared to PES fabrics loaded only with TiO2 nanoparticles.
PB  - Wiley, Hoboken
T2  - Polymers for Advanced Technologies
T1  - Novel properties of PES fabrics modified by corona discharge and colloidal TiO2 nanoparticles
EP  - 709
IS  - 5
SP  - 703
VL  - 22
DO  - 10.1002/pat.1568
ER  - 
@article{
author = "Mihailović, Darka and Šaponjić, Zoran and Radoičić, Marija B. and Molina, Ricardo and Radetić, Tamara and Jovančić, Petar and Nedeljković, Jovan and Radetić, Maja",
year = "2011",
abstract = "The objective of this study was to highlight the potential application of the corona discharge at atmospheric pressure for the surface activation of polyester (PES) fabrics in order to improve the binding efficiency of colloidal TiO2 nanoparticles. The obtained nanocomposite textile materials provide desirable level of UV protection, self-cleaning properties, and photodegradation activity. The measured UV protection factor (UPF) of fabrics corresponds to UPF rating of 50+, designating the maximum UV protection. Additionally, the total photodegradation of methylene blue in aqueous solution was achieved after 24 hr of UV illumination and this capability was preserved and even improved after four repeated cycles. The results showed that the corona treated PES fabrics loaded with TiO2 nanoparticles had considerably enhanced the overall efficiency compared to PES fabrics loaded only with TiO2 nanoparticles.",
publisher = "Wiley, Hoboken",
journal = "Polymers for Advanced Technologies",
title = "Novel properties of PES fabrics modified by corona discharge and colloidal TiO2 nanoparticles",
pages = "709-703",
number = "5",
volume = "22",
doi = "10.1002/pat.1568"
}
Mihailović, D., Šaponjić, Z., Radoičić, M. B., Molina, R., Radetić, T., Jovančić, P., Nedeljković, J.,& Radetić, M.. (2011). Novel properties of PES fabrics modified by corona discharge and colloidal TiO2 nanoparticles. in Polymers for Advanced Technologies
Wiley, Hoboken., 22(5), 703-709.
https://doi.org/10.1002/pat.1568
Mihailović D, Šaponjić Z, Radoičić MB, Molina R, Radetić T, Jovančić P, Nedeljković J, Radetić M. Novel properties of PES fabrics modified by corona discharge and colloidal TiO2 nanoparticles. in Polymers for Advanced Technologies. 2011;22(5):703-709.
doi:10.1002/pat.1568 .
Mihailović, Darka, Šaponjić, Zoran, Radoičić, Marija B., Molina, Ricardo, Radetić, Tamara, Jovančić, Petar, Nedeljković, Jovan, Radetić, Maja, "Novel properties of PES fabrics modified by corona discharge and colloidal TiO2 nanoparticles" in Polymers for Advanced Technologies, 22, no. 5 (2011):703-709,
https://doi.org/10.1002/pat.1568 . .
15
11
13

The effect of ECAP and Cu addition on the aging response and grain substructure evolution in an Al-4.4 wt.% Mg alloy

Radetić, Tamara; Popović, Miljana; Romhanji, Endre; Verlinden, Bert

(Elsevier Science Sa, Lausanne, 2010)

TY  - JOUR
AU  - Radetić, Tamara
AU  - Popović, Miljana
AU  - Romhanji, Endre
AU  - Verlinden, Bert
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1684
AB  - The effect of ECAP conducted at 200 degrees C on the grain substructure evolution in an AA5182 alloy and the same alloy with 1.2 wt.% Cu addition was investigated. Severe plastic deformation was found to accelerate the precipitation kinetics in the AA5182 + Cu alloy, leading to the formation of a fine dispersion of the stable S phase precipitates. These particles homogenized slip, causing a delay of the band/cell substructure formation in the AA5182 + Cu alloy compared to the AA5182 alloy processed in the same manner. Aside from the conventional particle hardening effect, the precipitates also play a role in retarding the recovery and recrystallization processes, retaining the effects of strain in the material after ECAP at elevated temperature.
PB  - Elsevier Science Sa, Lausanne
T2  - Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
T1  - The effect of ECAP and Cu addition on the aging response and grain substructure evolution in an Al-4.4 wt.% Mg alloy
EP  - 644
IS  - 3
SP  - 634
VL  - 527
DO  - 10.1016/j.msea.2009.08.037
ER  - 
@article{
author = "Radetić, Tamara and Popović, Miljana and Romhanji, Endre and Verlinden, Bert",
year = "2010",
abstract = "The effect of ECAP conducted at 200 degrees C on the grain substructure evolution in an AA5182 alloy and the same alloy with 1.2 wt.% Cu addition was investigated. Severe plastic deformation was found to accelerate the precipitation kinetics in the AA5182 + Cu alloy, leading to the formation of a fine dispersion of the stable S phase precipitates. These particles homogenized slip, causing a delay of the band/cell substructure formation in the AA5182 + Cu alloy compared to the AA5182 alloy processed in the same manner. Aside from the conventional particle hardening effect, the precipitates also play a role in retarding the recovery and recrystallization processes, retaining the effects of strain in the material after ECAP at elevated temperature.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing",
title = "The effect of ECAP and Cu addition on the aging response and grain substructure evolution in an Al-4.4 wt.% Mg alloy",
pages = "644-634",
number = "3",
volume = "527",
doi = "10.1016/j.msea.2009.08.037"
}
Radetić, T., Popović, M., Romhanji, E.,& Verlinden, B.. (2010). The effect of ECAP and Cu addition on the aging response and grain substructure evolution in an Al-4.4 wt.% Mg alloy. in Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing
Elsevier Science Sa, Lausanne., 527(3), 634-644.
https://doi.org/10.1016/j.msea.2009.08.037
Radetić T, Popović M, Romhanji E, Verlinden B. The effect of ECAP and Cu addition on the aging response and grain substructure evolution in an Al-4.4 wt.% Mg alloy. in Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing. 2010;527(3):634-644.
doi:10.1016/j.msea.2009.08.037 .
Radetić, Tamara, Popović, Miljana, Romhanji, Endre, Verlinden, Bert, "The effect of ECAP and Cu addition on the aging response and grain substructure evolution in an Al-4.4 wt.% Mg alloy" in Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 527, no. 3 (2010):634-644,
https://doi.org/10.1016/j.msea.2009.08.037 . .
15
11
17

Functionalization of polyester fabrics with alginates and TiO2 nanoparticles

Mihailović, Darka; Šaponjić, Zoran; Radoičić, Marija B.; Radetić, Tamara; Jovančić, Petar; Nedeljković, Jovan; Radetić, Maja

(Elsevier Sci Ltd, Oxford, 2010)

TY  - JOUR
AU  - Mihailović, Darka
AU  - Šaponjić, Zoran
AU  - Radoičić, Marija B.
AU  - Radetić, Tamara
AU  - Jovančić, Petar
AU  - Nedeljković, Jovan
AU  - Radetić, Maja
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1680
AB  - This study was aimed to investigate the possibility of engineering the multifunctional textile nanocomposite material based on the polyester fabric modified with natural polysaccharide alginate and colloidal TiO2 nanoparticles. The multifunctionality of such nanocomposite material was evaluated by analyzing its UV protection efficiency, antibacterial and photocatalytic activity. The level of UV protection was verified by the UV protection factor (UPF) of polyester fabrics. Antibacterial activity of modified polyester fabrics was tested against Gram-negative bacterium Escherichia coli. The photocatalytic activity of TiO2 nanoparticles deposited on the polyester fabrics was followed by degradation of methylene blue as a model compound in aqueous solution. Modified polyester fabrics exhibited outstanding antibacterial activity and UV protection efficiency even after five washing cycles, indicating the excellent laundering durability. The total photodegradation of methylene blue was reached after 24 h of UV illumination and this ability was preserved and even enhanced after two consecutive cycles.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Functionalization of polyester fabrics with alginates and TiO2 nanoparticles
EP  - 532
IS  - 3
SP  - 526
VL  - 79
DO  - 10.1016/j.carbpol.2009.08.036
ER  - 
@article{
author = "Mihailović, Darka and Šaponjić, Zoran and Radoičić, Marija B. and Radetić, Tamara and Jovančić, Petar and Nedeljković, Jovan and Radetić, Maja",
year = "2010",
abstract = "This study was aimed to investigate the possibility of engineering the multifunctional textile nanocomposite material based on the polyester fabric modified with natural polysaccharide alginate and colloidal TiO2 nanoparticles. The multifunctionality of such nanocomposite material was evaluated by analyzing its UV protection efficiency, antibacterial and photocatalytic activity. The level of UV protection was verified by the UV protection factor (UPF) of polyester fabrics. Antibacterial activity of modified polyester fabrics was tested against Gram-negative bacterium Escherichia coli. The photocatalytic activity of TiO2 nanoparticles deposited on the polyester fabrics was followed by degradation of methylene blue as a model compound in aqueous solution. Modified polyester fabrics exhibited outstanding antibacterial activity and UV protection efficiency even after five washing cycles, indicating the excellent laundering durability. The total photodegradation of methylene blue was reached after 24 h of UV illumination and this ability was preserved and even enhanced after two consecutive cycles.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Functionalization of polyester fabrics with alginates and TiO2 nanoparticles",
pages = "532-526",
number = "3",
volume = "79",
doi = "10.1016/j.carbpol.2009.08.036"
}
Mihailović, D., Šaponjić, Z., Radoičić, M. B., Radetić, T., Jovančić, P., Nedeljković, J.,& Radetić, M.. (2010). Functionalization of polyester fabrics with alginates and TiO2 nanoparticles. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 79(3), 526-532.
https://doi.org/10.1016/j.carbpol.2009.08.036
Mihailović D, Šaponjić Z, Radoičić MB, Radetić T, Jovančić P, Nedeljković J, Radetić M. Functionalization of polyester fabrics with alginates and TiO2 nanoparticles. in Carbohydrate Polymers. 2010;79(3):526-532.
doi:10.1016/j.carbpol.2009.08.036 .
Mihailović, Darka, Šaponjić, Zoran, Radoičić, Marija B., Radetić, Tamara, Jovančić, Petar, Nedeljković, Jovan, Radetić, Maja, "Functionalization of polyester fabrics with alginates and TiO2 nanoparticles" in Carbohydrate Polymers, 79, no. 3 (2010):526-532,
https://doi.org/10.1016/j.carbpol.2009.08.036 . .
139
119
147

Synthesis of submicron carbon spheres by the ultrasonic spray pyrolysis method

Jokić, Bojan; Drmanić, Saša; Radetić, Tamara; Krstić, Jugoslav; Petrović, Rada; Orlović, Aleksandar; Janaćković, Đorđe

(Elsevier, Amsterdam, 2010)

TY  - JOUR
AU  - Jokić, Bojan
AU  - Drmanić, Saša
AU  - Radetić, Tamara
AU  - Krstić, Jugoslav
AU  - Petrović, Rada
AU  - Orlović, Aleksandar
AU  - Janaćković, Đorđe
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1661
AB  - Submicron carbon spherical particles were obtained by polycondensation of resorcinol and formaldehyde in a solution and subsequent ultrasonic spray pyrolysis of the prepared sol. Microscopic characterization indicates the regular spherical shape of the obtained particles and sphere diameters in 200-700 nm range. The carbon spheres are amorphous as confirmed by electron diffraction, EELS, XRD and HREM characterization. Activation procedure was performed with H2O in a nitrogen flow for 15 and 30 min at 800 degrees C. The activation procedure preserved the initial spherical shapes of the particles while the particle porosity and specific surface area were increased. The amount of surface oxygen functionalities was also increased by activation procedure as indicated by FTIR analysis.
PB  - Elsevier, Amsterdam
T2  - Materials Letters
T1  - Synthesis of submicron carbon spheres by the ultrasonic spray pyrolysis method
EP  - 2176
IS  - 20
SP  - 2173
VL  - 64
DO  - 10.1016/j.matlet.2010.06.066
ER  - 
@article{
author = "Jokić, Bojan and Drmanić, Saša and Radetić, Tamara and Krstić, Jugoslav and Petrović, Rada and Orlović, Aleksandar and Janaćković, Đorđe",
year = "2010",
abstract = "Submicron carbon spherical particles were obtained by polycondensation of resorcinol and formaldehyde in a solution and subsequent ultrasonic spray pyrolysis of the prepared sol. Microscopic characterization indicates the regular spherical shape of the obtained particles and sphere diameters in 200-700 nm range. The carbon spheres are amorphous as confirmed by electron diffraction, EELS, XRD and HREM characterization. Activation procedure was performed with H2O in a nitrogen flow for 15 and 30 min at 800 degrees C. The activation procedure preserved the initial spherical shapes of the particles while the particle porosity and specific surface area were increased. The amount of surface oxygen functionalities was also increased by activation procedure as indicated by FTIR analysis.",
publisher = "Elsevier, Amsterdam",
journal = "Materials Letters",
title = "Synthesis of submicron carbon spheres by the ultrasonic spray pyrolysis method",
pages = "2176-2173",
number = "20",
volume = "64",
doi = "10.1016/j.matlet.2010.06.066"
}
Jokić, B., Drmanić, S., Radetić, T., Krstić, J., Petrović, R., Orlović, A.,& Janaćković, Đ.. (2010). Synthesis of submicron carbon spheres by the ultrasonic spray pyrolysis method. in Materials Letters
Elsevier, Amsterdam., 64(20), 2173-2176.
https://doi.org/10.1016/j.matlet.2010.06.066
Jokić B, Drmanić S, Radetić T, Krstić J, Petrović R, Orlović A, Janaćković Đ. Synthesis of submicron carbon spheres by the ultrasonic spray pyrolysis method. in Materials Letters. 2010;64(20):2173-2176.
doi:10.1016/j.matlet.2010.06.066 .
Jokić, Bojan, Drmanić, Saša, Radetić, Tamara, Krstić, Jugoslav, Petrović, Rada, Orlović, Aleksandar, Janaćković, Đorđe, "Synthesis of submicron carbon spheres by the ultrasonic spray pyrolysis method" in Materials Letters, 64, no. 20 (2010):2173-2176,
https://doi.org/10.1016/j.matlet.2010.06.066 . .
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