TY  - JOUR
AU  - Pešić, Jelena
AU  - Šolajić, Andrijana
AU  - Mitrić, Jelena
AU  - Gilić, Martina
AU  - Pešić, Ivan
AU  - Paunović, Novica
AU  - Romčević, Nebojša
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5139
AB  - The rich chemistries and unique morphologies of titanium carbide MXenes, made them strong candidates for many applications like sensors and electronic device materials. During the synthesis procedure, chemical etching, oxidation occurs and residual materials, like titanium-dioxide nanocrystals and nanosheets are often present in resulting material. As titanium-carbide MXenes are suggested to be used as additive in organic polymer matrices for production of nanocomposites, it is essential to consider the presence of the oxides and other residuals together with MXene flakes in synthesis results, and consequently in produced nanocomposite. In this study we present structural and optical characterization of such polymer nanocomposite titanium carbide/PMMA (Polymethyl methacrylate) consisting of Ti3C2, TiC2 MXenes and TiC, and TiO2 residues of synthesis in PMMA matrix, as a multicomponent nanocomposite. Using XRD, infra-red and Raman spectroscopy, followed by comparative study on the vibrational properties using density functional theory calculations, we characterize this nanocomposite. Further, the SEM measurements are performed, demonstrating the produced titanium-carbide-based flakes in nanocomposite are well defined and separated to nanosized grains, allowing us to use Maxwell–Garnet model to analyse infrared spectrum. This enables us to determine the presence of the optical modification of polymer matrices corresponding to a volume fraction of 0.25.
PB  - Springer
T2  - Optical and Quantum Electronics
T1  - Structural and optical characterization of titanium–carbide and polymethyl methacrylate based nanocomposite
IS  - 6
SP  - 354
VL  - 54
DO  - 10.1007/s11082-022-03674-z
ER  - 

@article{
author = "Pešić, Jelena and Šolajić, Andrijana and Mitrić, Jelena and Gilić, Martina and Pešić, Ivan and Paunović, Novica and Romčević, Nebojša",
year = "2022",
abstract = "The rich chemistries and unique morphologies of titanium carbide MXenes, made them strong candidates for many applications like sensors and electronic device materials. During the synthesis procedure, chemical etching, oxidation occurs and residual materials, like titanium-dioxide nanocrystals and nanosheets are often present in resulting material. As titanium-carbide MXenes are suggested to be used as additive in organic polymer matrices for production of nanocomposites, it is essential to consider the presence of the oxides and other residuals together with MXene flakes in synthesis results, and consequently in produced nanocomposite. In this study we present structural and optical characterization of such polymer nanocomposite titanium carbide/PMMA (Polymethyl methacrylate) consisting of Ti3C2, TiC2 MXenes and TiC, and TiO2 residues of synthesis in PMMA matrix, as a multicomponent nanocomposite. Using XRD, infra-red and Raman spectroscopy, followed by comparative study on the vibrational properties using density functional theory calculations, we characterize this nanocomposite. Further, the SEM measurements are performed, demonstrating the produced titanium-carbide-based flakes in nanocomposite are well defined and separated to nanosized grains, allowing us to use Maxwell–Garnet model to analyse infrared spectrum. This enables us to determine the presence of the optical modification of polymer matrices corresponding to a volume fraction of 0.25.",
publisher = "Springer",
journal = "Optical and Quantum Electronics",
title = "Structural and optical characterization of titanium–carbide and polymethyl methacrylate based nanocomposite",
number = "6",
pages = "354",
volume = "54",
doi = "10.1007/s11082-022-03674-z"
}

Pešić, J., Šolajić, A., Mitrić, J., Gilić, M., Pešić, I., Paunović, N.,& Romčević, N.. (2022). Structural and optical characterization of titanium–carbide and polymethyl methacrylate based nanocomposite. in Optical and Quantum Electronics
Springer., 54(6), 354.
https://doi.org/10.1007/s11082-022-03674-z

Pešić J, Šolajić A, Mitrić J, Gilić M, Pešić I, Paunović N, Romčević N. Structural and optical characterization of titanium–carbide and polymethyl methacrylate based nanocomposite. in Optical and Quantum Electronics. 2022;54(6):354.
doi:10.1007/s11082-022-03674-z .

Pešić, Jelena, Šolajić, Andrijana, Mitrić, Jelena, Gilić, Martina, Pešić, Ivan, Paunović, Novica, Romčević, Nebojša, "Structural and optical characterization of titanium–carbide and polymethyl methacrylate based nanocomposite" in Optical and Quantum Electronics, 54, no. 6 (2022):354,
https://doi.org/10.1007/s11082-022-03674-z . .

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Gavrilov, Nemanja M.
AU  - Jokić, Bojan M.
AU  - Gilić, Martina
AU  - Krstić, Aleksandar D.
AU  - Pašti, Igor A.
AU  - Babić, Biljana M.
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5887
AB  - Resorcinol–formaldehyde (RF) cryogels were synthesized by sol–gel polycondensation of resorcinol with formaldehyde and freeze-drying was carried out with t-butanol. Carbon cryogel (CC) was obtained by pyrolyzing RF cryogels in an inert atmosphere to 950 °C. Nitrogen doped CCs (CCN) were synthesized by introducing melamine into RF precursor mixture solution to obtain nitrogen concentration 2, 6 and 10 wt.%. Material was characterized by elemental analysis, nitrogen adsorption– desorption measurements, scanning electron microscopy (SEM), Raman spectroscopy, FT-IR Spectroscopy. Cyclic voltammetry (CV) was used to investigate capacitive and electrocatalytic properties. Conductivity measurement was also performed. Elemental analysis results confirmed presence of nitrogen in CCN samples in the range from 0.45 to 1.15 wt.%. Raman spectroscopy of the samples showed increase of D and G peak integrated intensity ratio (ID/IG) with nitrogen doping suggesting that the structural disorder as well as edge plane density increase, but according to similar ID/IG values for CCN samples, their share is not directly related to the amount of incorporated N. Characterization by nitrogen adsorption showed that overall specific surface and maximum mesopores are achieved in CCN sample with medium nitrogen concentration. Results of cyclic voltammetry experiments demonstrated maximum capacitance for CCN sample with smallest N wt.% indicating that narrow pore size distribution and high specific surface area are dominant factors to achieve good capacitive behavior. The relatively low doping level of nitrogen reached in CCN samples may be the reason for the incomplete reduction of oxygen to hydroxide and furthermore it turned out that presence of N in the structure of CC had a negligible effect on the otherwise relatively high conductivity of CC. © 2019 Elsevier B.V.
T2  - Materials Chemistry and Physics
T1  - Composition, structure and potential energy application of nitrogen doped carbon cryogels
SP  - 122120
VL  - 239
DO  - 10.1016/j.matchemphys.2019.122120
ER  - 

@article{
author = "Kalijadis, Ana and Gavrilov, Nemanja M. and Jokić, Bojan M. and Gilić, Martina and Krstić, Aleksandar D. and Pašti, Igor A. and Babić, Biljana M.",
year = "2020",
abstract = "Resorcinol–formaldehyde (RF) cryogels were synthesized by sol–gel polycondensation of resorcinol with formaldehyde and freeze-drying was carried out with t-butanol. Carbon cryogel (CC) was obtained by pyrolyzing RF cryogels in an inert atmosphere to 950 °C. Nitrogen doped CCs (CCN) were synthesized by introducing melamine into RF precursor mixture solution to obtain nitrogen concentration 2, 6 and 10 wt.%. Material was characterized by elemental analysis, nitrogen adsorption– desorption measurements, scanning electron microscopy (SEM), Raman spectroscopy, FT-IR Spectroscopy. Cyclic voltammetry (CV) was used to investigate capacitive and electrocatalytic properties. Conductivity measurement was also performed. Elemental analysis results confirmed presence of nitrogen in CCN samples in the range from 0.45 to 1.15 wt.%. Raman spectroscopy of the samples showed increase of D and G peak integrated intensity ratio (ID/IG) with nitrogen doping suggesting that the structural disorder as well as edge plane density increase, but according to similar ID/IG values for CCN samples, their share is not directly related to the amount of incorporated N. Characterization by nitrogen adsorption showed that overall specific surface and maximum mesopores are achieved in CCN sample with medium nitrogen concentration. Results of cyclic voltammetry experiments demonstrated maximum capacitance for CCN sample with smallest N wt.% indicating that narrow pore size distribution and high specific surface area are dominant factors to achieve good capacitive behavior. The relatively low doping level of nitrogen reached in CCN samples may be the reason for the incomplete reduction of oxygen to hydroxide and furthermore it turned out that presence of N in the structure of CC had a negligible effect on the otherwise relatively high conductivity of CC. © 2019 Elsevier B.V.",
journal = "Materials Chemistry and Physics",
title = "Composition, structure and potential energy application of nitrogen doped carbon cryogels",
pages = "122120",
volume = "239",
doi = "10.1016/j.matchemphys.2019.122120"
}

Kalijadis, A., Gavrilov, N. M., Jokić, B. M., Gilić, M., Krstić, A. D., Pašti, I. A.,& Babić, B. M.. (2020). Composition, structure and potential energy application of nitrogen doped carbon cryogels. in Materials Chemistry and Physics, 239, 122120.
https://doi.org/10.1016/j.matchemphys.2019.122120

Kalijadis A, Gavrilov NM, Jokić BM, Gilić M, Krstić AD, Pašti IA, Babić BM. Composition, structure and potential energy application of nitrogen doped carbon cryogels. in Materials Chemistry and Physics. 2020;239:122120.
doi:10.1016/j.matchemphys.2019.122120 .

Kalijadis, Ana, Gavrilov, Nemanja M., Jokić, Bojan M., Gilić, Martina, Krstić, Aleksandar D., Pašti, Igor A., Babić, Biljana M., "Composition, structure and potential energy application of nitrogen doped carbon cryogels" in Materials Chemistry and Physics, 239 (2020):122120,
https://doi.org/10.1016/j.matchemphys.2019.122120 . .

TY  - CONF
AU  - Lazarević, Zorica
AU  - Dimitrijević, Stevan
AU  - Mitrić, Miodrag
AU  - Dimitrijević, Silvana
AU  - Petrović, Milica
AU  - Gilić, Martina
AU  - Romčević, Nebojša
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7002
AB  - The aim of the present work is characterization of electrochemically treated Ag43-Cu37-Zn20 alloy in near neutral chloride solutions by the X-ray diffraction and Raman spectroscopy. At potential of +0.25 V, a complex multilayer film is formed. XRD shows that it consists of CuCl and zinc hydroxichlorides with small amount of Cu2O, probably formed in the film pores. It can be concluded that the Raman spectroscopy is observed almost all the modes that are registered with the XRD analysis.
PB  - Bor : Mining and Metallurgy Institute
C3  - Proceedings / 47th International October Conference on Mining and Metallurgy - IOC 2015, 4th-6th October 2015, Bor Lake, Serbia
T1  - RAMAN SPECROSCOPY STUDY OF ANODIC FILM ON Ag43Cu37Zn20 ALLOY
EP  - 158
SP  - 155
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7002
ER  - 

@conference{
author = "Lazarević, Zorica and Dimitrijević, Stevan and Mitrić, Miodrag and Dimitrijević, Silvana and Petrović, Milica and Gilić, Martina and Romčević, Nebojša",
year = "2015",
abstract = "The aim of the present work is characterization of electrochemically treated Ag43-Cu37-Zn20 alloy in near neutral chloride solutions by the X-ray diffraction and Raman spectroscopy. At potential of +0.25 V, a complex multilayer film is formed. XRD shows that it consists of CuCl and zinc hydroxichlorides with small amount of Cu2O, probably formed in the film pores. It can be concluded that the Raman spectroscopy is observed almost all the modes that are registered with the XRD analysis.",
publisher = "Bor : Mining and Metallurgy Institute",
journal = "Proceedings / 47th International October Conference on Mining and Metallurgy - IOC 2015, 4th-6th October 2015, Bor Lake, Serbia",
title = "RAMAN SPECROSCOPY STUDY OF ANODIC FILM ON Ag43Cu37Zn20 ALLOY",
pages = "158-155",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7002"
}

Lazarević, Z., Dimitrijević, S., Mitrić, M., Dimitrijević, S., Petrović, M., Gilić, M.,& Romčević, N.. (2015). RAMAN SPECROSCOPY STUDY OF ANODIC FILM ON Ag43Cu37Zn20 ALLOY. in Proceedings / 47th International October Conference on Mining and Metallurgy - IOC 2015, 4th-6th October 2015, Bor Lake, Serbia
Bor : Mining and Metallurgy Institute., 155-158.
https://hdl.handle.net/21.15107/rcub_technorep_7002

Lazarević Z, Dimitrijević S, Mitrić M, Dimitrijević S, Petrović M, Gilić M, Romčević N. RAMAN SPECROSCOPY STUDY OF ANODIC FILM ON Ag43Cu37Zn20 ALLOY. in Proceedings / 47th International October Conference on Mining and Metallurgy - IOC 2015, 4th-6th October 2015, Bor Lake, Serbia. 2015;:155-158.
https://hdl.handle.net/21.15107/rcub_technorep_7002 .

Lazarević, Zorica, Dimitrijević, Stevan, Mitrić, Miodrag, Dimitrijević, Silvana, Petrović, Milica, Gilić, Martina, Romčević, Nebojša, "RAMAN SPECROSCOPY STUDY OF ANODIC FILM ON Ag43Cu37Zn20 ALLOY" in Proceedings / 47th International October Conference on Mining and Metallurgy - IOC 2015, 4th-6th October 2015, Bor Lake, Serbia (2015):155-158,
https://hdl.handle.net/21.15107/rcub_technorep_7002 .