TY  - JOUR
AU  - Berkesi, Kata
AU  - Živković, Predrag M.
AU  - Elezović, Nevenka
AU  - Lačnjevac, Uroš
AU  - Hristoforou, Evangelos
AU  - Nikolić, Nebojša D.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5895
AB  - Electrodeposition of copper in the hydrogen co-deposition range by the regime of reversing current (RC) in the second range has been investigated by determination of the average current efficiency for hydrogen evolution reaction and by scanning electron (SEM) and optical (OM) microscopic analysis of the obtained deposits. Keeping the cathodic current density, the cathodic and the anodic pulses constant in all experiments, the anodic current density (ja) values were varied: 40, 80, 160, 240 and 320 mA cm−2. The Cu deposits produced by the RC regimes with different anodic current density values were compared with that obtained in a constant galvanostatic regime (DC) at the current density equal to the cathodic current density in the RC regimes. The honeycomb-like structures were formed in the DC regime and by the RC regimes with ja of 40 and 80 mA cm−2. The hole size in them was in the 60–70 μm range. Due to the decrease of quantity of evolved hydrogen with increasing anodic current density, the larger dish-like holes with dendrites at their bottom and shoulder were formed with ja values of 160, 240 and 320 mA cm−2. The maximum number of holes, and hence, the largest specific surface area of the honeycomb-like electrodes was obtained with ja = 80 mA cm−2, that can be ascribed to a suppression of coalescence of neighboring hydrogen bubbles. Application of the RC regime also led to the increase of uniformity of structures, what is concluded by cross section analysis of the formed honeycomb-like electrodes. For the first time, mechanism of Cu electrodeposition in the hydrogen co-deposition range by the RC regime in the second range was proposed and discussed.
PB  - Elsevier B.V.
T2  - Journal of Electroanalytical Chemistry
T1  - Mechanism of formation of the honeycomb-like structures by the regime of the reversing current (RC) in the second range
EP  - 410
SP  - 401
VL  - 833
DO  - 10.1016/j.jelechem.2018.12.021
ER  - 

@article{
author = "Berkesi, Kata and Živković, Predrag M. and Elezović, Nevenka and Lačnjevac, Uroš and Hristoforou, Evangelos and Nikolić, Nebojša D.",
year = "2019",
abstract = "Electrodeposition of copper in the hydrogen co-deposition range by the regime of reversing current (RC) in the second range has been investigated by determination of the average current efficiency for hydrogen evolution reaction and by scanning electron (SEM) and optical (OM) microscopic analysis of the obtained deposits. Keeping the cathodic current density, the cathodic and the anodic pulses constant in all experiments, the anodic current density (ja) values were varied: 40, 80, 160, 240 and 320 mA cm−2. The Cu deposits produced by the RC regimes with different anodic current density values were compared with that obtained in a constant galvanostatic regime (DC) at the current density equal to the cathodic current density in the RC regimes. The honeycomb-like structures were formed in the DC regime and by the RC regimes with ja of 40 and 80 mA cm−2. The hole size in them was in the 60–70 μm range. Due to the decrease of quantity of evolved hydrogen with increasing anodic current density, the larger dish-like holes with dendrites at their bottom and shoulder were formed with ja values of 160, 240 and 320 mA cm−2. The maximum number of holes, and hence, the largest specific surface area of the honeycomb-like electrodes was obtained with ja = 80 mA cm−2, that can be ascribed to a suppression of coalescence of neighboring hydrogen bubbles. Application of the RC regime also led to the increase of uniformity of structures, what is concluded by cross section analysis of the formed honeycomb-like electrodes. For the first time, mechanism of Cu electrodeposition in the hydrogen co-deposition range by the RC regime in the second range was proposed and discussed.",
publisher = "Elsevier B.V.",
journal = "Journal of Electroanalytical Chemistry",
title = "Mechanism of formation of the honeycomb-like structures by the regime of the reversing current (RC) in the second range",
pages = "410-401",
volume = "833",
doi = "10.1016/j.jelechem.2018.12.021"
}

Berkesi, K., Živković, P. M., Elezović, N., Lačnjevac, U., Hristoforou, E.,& Nikolić, N. D.. (2019). Mechanism of formation of the honeycomb-like structures by the regime of the reversing current (RC) in the second range. in Journal of Electroanalytical Chemistry
Elsevier B.V.., 833, 401-410.
https://doi.org/10.1016/j.jelechem.2018.12.021

Berkesi K, Živković PM, Elezović N, Lačnjevac U, Hristoforou E, Nikolić ND. Mechanism of formation of the honeycomb-like structures by the regime of the reversing current (RC) in the second range. in Journal of Electroanalytical Chemistry. 2019;833:401-410.
doi:10.1016/j.jelechem.2018.12.021 .

Berkesi, Kata, Živković, Predrag M., Elezović, Nevenka, Lačnjevac, Uroš, Hristoforou, Evangelos, Nikolić, Nebojša D., "Mechanism of formation of the honeycomb-like structures by the regime of the reversing current (RC) in the second range" in Journal of Electroanalytical Chemistry, 833 (2019):401-410,
https://doi.org/10.1016/j.jelechem.2018.12.021 . .

TY  - JOUR
AU  - Nikolić, Nebojša D.
AU  - Živković, Predrag M.
AU  - Branković, Goran
AU  - Pavlović, Miomir
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5818
AB  - The processes of lead and zinc electrodeposition from the very dilute electrolytes were compared by the analysis of polarization characteristics and by the scanning electron microscopic (SEM) analysis of the morphology of the deposits obtained in the galvanostatic regime of electrolysis. The exchange current densities for lead and zinc were estimated by comparison of experimentally obtained polarization curves with the simulated ones obtained for the different the exchange current density to the limiting diffusion current density ratios. Using this way for the estimation of the exchange current density, it is shown that the exchange current density for Pb was more than 1300 times higher than the one for Zn. In this way, it is confirmed that the Pb electrodeposition processes are considerably faster than the Zn electrodeposition processes. The difference in the rate of electrochemical processes was confirmed by a comparison of morphologies of lead and zinc deposits obtained at current densities which corresponded to 0.25 and 0.50 values of the limiting diffusion current densities.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits
EP  - 550
IS  - 5
SP  - 539
VL  - 82
DO  - 10.2298/JSC161114029N
ER  - 

@article{
author = "Nikolić, Nebojša D. and Živković, Predrag M. and Branković, Goran and Pavlović, Miomir",
year = "2017",
abstract = "The processes of lead and zinc electrodeposition from the very dilute electrolytes were compared by the analysis of polarization characteristics and by the scanning electron microscopic (SEM) analysis of the morphology of the deposits obtained in the galvanostatic regime of electrolysis. The exchange current densities for lead and zinc were estimated by comparison of experimentally obtained polarization curves with the simulated ones obtained for the different the exchange current density to the limiting diffusion current density ratios. Using this way for the estimation of the exchange current density, it is shown that the exchange current density for Pb was more than 1300 times higher than the one for Zn. In this way, it is confirmed that the Pb electrodeposition processes are considerably faster than the Zn electrodeposition processes. The difference in the rate of electrochemical processes was confirmed by a comparison of morphologies of lead and zinc deposits obtained at current densities which corresponded to 0.25 and 0.50 values of the limiting diffusion current densities.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits",
pages = "550-539",
number = "5",
volume = "82",
doi = "10.2298/JSC161114029N"
}

Nikolić, N. D., Živković, P. M., Branković, G.,& Pavlović, M.. (2017). Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 82(5), 539-550.
https://doi.org/10.2298/JSC161114029N

Nikolić ND, Živković PM, Branković G, Pavlović M. Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits. in Journal of the Serbian Chemical Society. 2017;82(5):539-550.
doi:10.2298/JSC161114029N .

Nikolić, Nebojša D., Živković, Predrag M., Branković, Goran, Pavlović, Miomir, "Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits" in Journal of the Serbian Chemical Society, 82, no. 5 (2017):539-550,
https://doi.org/10.2298/JSC161114029N . .

TY  - JOUR
AU  - Popov, Konstantin I.
AU  - Živković, Predrag M.
AU  - Jokić, Bojan
AU  - Nikolić, Nebojša D.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5846
AB  - The simulated shapes of the polarization curves were correlated with the type of metal electrodeposition process control as a function of the ratio of the exchange current density to the limiting diffusion current density (j(0)/j(L)). Diagnostic criteria based on the j(0)/j(L) ratios were established. For j(0)/j(L) > 100, the system is under the ohmic control. In the range 1  LT  j(0)/j(L)  LT = 100, there is mixed ohmic-diffusion control. Pure diffusion control appears in the range 0.1  LT  j(0)/j(L)  LT = 1. For j(0)/j(L)  LT = 0.1, the system is activation controlled at low overpotentials. The proposed diagnostic criteria were verified by comparison of the simulated curves with experimentally recorded ones and by morphological analysis of deposits obtained under the different types of control of the metal electrodeposition process.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - The shape of the polarization curve and diagnostic criteria for control of the metal electrodeposition process
EP  - 306
IS  - 3
SP  - 291
VL  - 81
DO  - 10.2298/JSC150717076P
ER  - 

@article{
author = "Popov, Konstantin I. and Živković, Predrag M. and Jokić, Bojan and Nikolić, Nebojša D.",
year = "2016",
abstract = "The simulated shapes of the polarization curves were correlated with the type of metal electrodeposition process control as a function of the ratio of the exchange current density to the limiting diffusion current density (j(0)/j(L)). Diagnostic criteria based on the j(0)/j(L) ratios were established. For j(0)/j(L) > 100, the system is under the ohmic control. In the range 1  LT  j(0)/j(L)  LT = 100, there is mixed ohmic-diffusion control. Pure diffusion control appears in the range 0.1  LT  j(0)/j(L)  LT = 1. For j(0)/j(L)  LT = 0.1, the system is activation controlled at low overpotentials. The proposed diagnostic criteria were verified by comparison of the simulated curves with experimentally recorded ones and by morphological analysis of deposits obtained under the different types of control of the metal electrodeposition process.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "The shape of the polarization curve and diagnostic criteria for control of the metal electrodeposition process",
pages = "306-291",
number = "3",
volume = "81",
doi = "10.2298/JSC150717076P"
}

Popov, K. I., Živković, P. M., Jokić, B.,& Nikolić, N. D.. (2016). The shape of the polarization curve and diagnostic criteria for control of the metal electrodeposition process. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 81(3), 291-306.
https://doi.org/10.2298/JSC150717076P

Popov KI, Živković PM, Jokić B, Nikolić ND. The shape of the polarization curve and diagnostic criteria for control of the metal electrodeposition process. in Journal of the Serbian Chemical Society. 2016;81(3):291-306.
doi:10.2298/JSC150717076P .

Popov, Konstantin I., Živković, Predrag M., Jokić, Bojan, Nikolić, Nebojša D., "The shape of the polarization curve and diagnostic criteria for control of the metal electrodeposition process" in Journal of the Serbian Chemical Society, 81, no. 3 (2016):291-306,
https://doi.org/10.2298/JSC150717076P . .

TY  - JOUR
AU  - Pavlović, Miroslav M.
AU  - Pavlović, Miomir
AU  - Ćosović, Vladan
AU  - Bojanić, Vaso
AU  - Nikolić, Nebojša D.
AU  - Aleksić, Radoslav
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5778
AB  - Composites based on polymers with conductive fillers have been gaining more significant roles in a variety of technological domains and they are getting in the research focus of numerous studies as a part of growing research trend. Galvanostatically produced copper powder with high values of specific area was used as filler for synthesis of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder. This article is concerned with characterization of these composites. Analysis of the most significant properties of prepared composites and its components included measurements of electrical conductivity, impedance spectroscopy (IS) behavior and structural and morphological analysis. Volume fraction of the copper powder was varied from 2.0-29.8% (v/v). The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold (PT). It was shown that PT depends on both particle shape and type of spatial distribution. IS measurements have shown that particle morphology having pronounced grain boundaries has great effect on appearance of electric conductive layers. The packaging effect and more pronounced interpartical contact with copper powder particles lead to "movement" of PT, which for the particles  LT 45 mu m and highest processing pressure of 27 MPa was 7.2% (v/v). IS response of the composites showed existence of electrical conductive layers, each having different resistivity which increases towards interior of the composite.
PB  - Electrochemical Science Group
T2  - International Journal of Electrochemical Science
T1  - Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways
EP  - 8366
IS  - 12
SP  - 8355
VL  - 9
UR  - https://hdl.handle.net/21.15107/rcub_cer_1415
ER  - 

@article{
author = "Pavlović, Miroslav M. and Pavlović, Miomir and Ćosović, Vladan and Bojanić, Vaso and Nikolić, Nebojša D. and Aleksić, Radoslav",
year = "2014",
abstract = "Composites based on polymers with conductive fillers have been gaining more significant roles in a variety of technological domains and they are getting in the research focus of numerous studies as a part of growing research trend. Galvanostatically produced copper powder with high values of specific area was used as filler for synthesis of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder. This article is concerned with characterization of these composites. Analysis of the most significant properties of prepared composites and its components included measurements of electrical conductivity, impedance spectroscopy (IS) behavior and structural and morphological analysis. Volume fraction of the copper powder was varied from 2.0-29.8% (v/v). The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold (PT). It was shown that PT depends on both particle shape and type of spatial distribution. IS measurements have shown that particle morphology having pronounced grain boundaries has great effect on appearance of electric conductive layers. The packaging effect and more pronounced interpartical contact with copper powder particles lead to "movement" of PT, which for the particles  LT 45 mu m and highest processing pressure of 27 MPa was 7.2% (v/v). IS response of the composites showed existence of electrical conductive layers, each having different resistivity which increases towards interior of the composite.",
publisher = "Electrochemical Science Group",
journal = "International Journal of Electrochemical Science",
title = "Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways",
pages = "8366-8355",
number = "12",
volume = "9",
url = "https://hdl.handle.net/21.15107/rcub_cer_1415"
}

Pavlović, M. M., Pavlović, M., Ćosović, V., Bojanić, V., Nikolić, N. D.,& Aleksić, R.. (2014). Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways. in International Journal of Electrochemical Science
Electrochemical Science Group., 9(12), 8355-8366.
https://hdl.handle.net/21.15107/rcub_cer_1415

Pavlović MM, Pavlović M, Ćosović V, Bojanić V, Nikolić ND, Aleksić R. Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways. in International Journal of Electrochemical Science. 2014;9(12):8355-8366.
https://hdl.handle.net/21.15107/rcub_cer_1415 .

Pavlović, Miroslav M., Pavlović, Miomir, Ćosović, Vladan, Bojanić, Vaso, Nikolić, Nebojša D., Aleksić, Radoslav, "Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways" in International Journal of Electrochemical Science, 9, no. 12 (2014):8355-8366,
https://hdl.handle.net/21.15107/rcub_cer_1415 .

TY  - JOUR
AU  - Popov, Konstantin I.
AU  - Živković, Predrag M.
AU  - Nikolić, Nebojša D.
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5687
AB  - In this study, electrodeposition of silver from nitrate solution at the high overpotentials was analyzed. Morphologies of silver deposits obtained at the different overpotentials and with the different electrodeposition times were examined using the technique of scanning electron microscopy (SEM). The different disperse morphological forms, such as granules, needle-like and spongy-dendritic ones were formed during silver electrodeposition from this solution. The size of granules decreased and their number increased with the increase of overpotential of electrodeposition. With the increasing overpotential, the induction time for the appearance of spongy-dendritic forms decreased with a tendency to increase their ramification. Mathematic model describing the mechanism of metal electrodeposition at the high overpotentials is proposed and discussed on the basis of the obtained silver surface morphology.
PB  - Esg, Belgrade
T2  - International Journal of Electrochemical Science
T1  - Formation of Disperse Silver Deposits by the Electrodeposition Processes at High Overpotentials
EP  - 696
IS  - 1
SP  - 686
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_cer_1020
ER  - 

@article{
author = "Popov, Konstantin I. and Živković, Predrag M. and Nikolić, Nebojša D.",
year = "2012",
abstract = "In this study, electrodeposition of silver from nitrate solution at the high overpotentials was analyzed. Morphologies of silver deposits obtained at the different overpotentials and with the different electrodeposition times were examined using the technique of scanning electron microscopy (SEM). The different disperse morphological forms, such as granules, needle-like and spongy-dendritic ones were formed during silver electrodeposition from this solution. The size of granules decreased and their number increased with the increase of overpotential of electrodeposition. With the increasing overpotential, the induction time for the appearance of spongy-dendritic forms decreased with a tendency to increase their ramification. Mathematic model describing the mechanism of metal electrodeposition at the high overpotentials is proposed and discussed on the basis of the obtained silver surface morphology.",
publisher = "Esg, Belgrade",
journal = "International Journal of Electrochemical Science",
title = "Formation of Disperse Silver Deposits by the Electrodeposition Processes at High Overpotentials",
pages = "696-686",
number = "1",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_cer_1020"
}

Popov, K. I., Živković, P. M.,& Nikolić, N. D.. (2012). Formation of Disperse Silver Deposits by the Electrodeposition Processes at High Overpotentials. in International Journal of Electrochemical Science
Esg, Belgrade., 7(1), 686-696.
https://hdl.handle.net/21.15107/rcub_cer_1020

Popov KI, Živković PM, Nikolić ND. Formation of Disperse Silver Deposits by the Electrodeposition Processes at High Overpotentials. in International Journal of Electrochemical Science. 2012;7(1):686-696.
https://hdl.handle.net/21.15107/rcub_cer_1020 .

Popov, Konstantin I., Živković, Predrag M., Nikolić, Nebojša D., "Formation of Disperse Silver Deposits by the Electrodeposition Processes at High Overpotentials" in International Journal of Electrochemical Science, 7, no. 1 (2012):686-696,
https://hdl.handle.net/21.15107/rcub_cer_1020 .

TY  - JOUR
AU  - Pavlović, Miroslav M.
AU  - Ćosović, Vladan
AU  - Pavlović, Miomir
AU  - Bojanić, Vaso
AU  - Nikolić, Nebojša D.
AU  - Aleksić, Radoslav
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5682
AB  - This article is concerned with synthesis and characterization of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder under different pressures, and investigation of the influence of particle size on conductivity and percolation threshold of obtained composites. Electrodeposited copper powder content was varied from 2.0-29.8 vol%. Analysis of the most significant properties of individual components and prepared composites included structural and morphological analysis and measurements of hardness and electrical conductivity. Hardness of the investigated composites, as expected, increased with the increase of the processing pressure, as well as lowering the particle size compared to previous work. The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold. The packaging effect and more pronounced interpartical contact with smaller, highly porous, highly dendritic particles with high values of specific area lead to "movement" of percolation threshold towards lower filler content, which for the particles  LT 45 mu m and highest processing pressure of 27 MPa was 7.2% (v/v). In the investigated range of electrodeposited copper powder concentrations and applied pressures the increase of the electrical conductivity of composites is as much as fourteen orders of magnitude. It was found that this transition occurs at lower volume fractions than stated in the literature which can be due to the filler with high specific area.
PB  - Esg, Belgrade
T2  - International Journal of Electrochemical Science
T1  - Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold
EP  - 8893
IS  - 9
SP  - 8883
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_cer_1027
ER  - 

@article{
author = "Pavlović, Miroslav M. and Ćosović, Vladan and Pavlović, Miomir and Bojanić, Vaso and Nikolić, Nebojša D. and Aleksić, Radoslav",
year = "2012",
abstract = "This article is concerned with synthesis and characterization of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder under different pressures, and investigation of the influence of particle size on conductivity and percolation threshold of obtained composites. Electrodeposited copper powder content was varied from 2.0-29.8 vol%. Analysis of the most significant properties of individual components and prepared composites included structural and morphological analysis and measurements of hardness and electrical conductivity. Hardness of the investigated composites, as expected, increased with the increase of the processing pressure, as well as lowering the particle size compared to previous work. The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold. The packaging effect and more pronounced interpartical contact with smaller, highly porous, highly dendritic particles with high values of specific area lead to "movement" of percolation threshold towards lower filler content, which for the particles  LT 45 mu m and highest processing pressure of 27 MPa was 7.2% (v/v). In the investigated range of electrodeposited copper powder concentrations and applied pressures the increase of the electrical conductivity of composites is as much as fourteen orders of magnitude. It was found that this transition occurs at lower volume fractions than stated in the literature which can be due to the filler with high specific area.",
publisher = "Esg, Belgrade",
journal = "International Journal of Electrochemical Science",
title = "Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold",
pages = "8893-8883",
number = "9",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_cer_1027"
}

Pavlović, M. M., Ćosović, V., Pavlović, M., Bojanić, V., Nikolić, N. D.,& Aleksić, R.. (2012). Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold. in International Journal of Electrochemical Science
Esg, Belgrade., 7(9), 8883-8893.
https://hdl.handle.net/21.15107/rcub_cer_1027

Pavlović MM, Ćosović V, Pavlović M, Bojanić V, Nikolić ND, Aleksić R. Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold. in International Journal of Electrochemical Science. 2012;7(9):8883-8893.
https://hdl.handle.net/21.15107/rcub_cer_1027 .

Pavlović, Miroslav M., Ćosović, Vladan, Pavlović, Miomir, Bojanić, Vaso, Nikolić, Nebojša D., Aleksić, Radoslav, "Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold" in International Journal of Electrochemical Science, 7, no. 9 (2012):8883-8893,
https://hdl.handle.net/21.15107/rcub_cer_1027 .

TY  - JOUR
AU  - Pavlović, Miomir
AU  - Pavlovic, Lj. J.
AU  - Maksimović, Vesna M.
AU  - Nikolić, Nebojša D.
AU  - Popov, Konstantin I.
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5585
AB  - The effect different deposition regimes (constant and reversing currents), on the powdered copper electrodeposits morphology were investigated. The results obtained in constant regimes were compared with those obtained in reversing regimes. The morphology of electrodeposited copper powder were investigated using a scanning electron microscope (SEM). The effect of the current amplitude, cathodic-to-anodic time ratio and period of the current wave are discussed. It is shown that the parameters determining the reversing current wave determine the micromorphology of the copper powder particles deposited. On the other side, technological properties of powders depend on their granulometry and particle morphology. Very often one method is inadequate for characterization of the morphology of powder particles. This paper also studied different methods for clear describing of the copper powder granulometry and morphology.
PB  - Esg, Belgrade
T2  - International Journal of Electrochemical Science
T1  - Characterization and Morphology of Copper Powder Particles as a Function of Different Electrolytic Regimes
EP  - 1878
IS  - 12
SP  - 1862
VL  - 5
UR  - https://hdl.handle.net/21.15107/rcub_cer_694
ER  - 

@article{
author = "Pavlović, Miomir and Pavlovic, Lj. J. and Maksimović, Vesna M. and Nikolić, Nebojša D. and Popov, Konstantin I.",
year = "2010",
abstract = "The effect different deposition regimes (constant and reversing currents), on the powdered copper electrodeposits morphology were investigated. The results obtained in constant regimes were compared with those obtained in reversing regimes. The morphology of electrodeposited copper powder were investigated using a scanning electron microscope (SEM). The effect of the current amplitude, cathodic-to-anodic time ratio and period of the current wave are discussed. It is shown that the parameters determining the reversing current wave determine the micromorphology of the copper powder particles deposited. On the other side, technological properties of powders depend on their granulometry and particle morphology. Very often one method is inadequate for characterization of the morphology of powder particles. This paper also studied different methods for clear describing of the copper powder granulometry and morphology.",
publisher = "Esg, Belgrade",
journal = "International Journal of Electrochemical Science",
title = "Characterization and Morphology of Copper Powder Particles as a Function of Different Electrolytic Regimes",
pages = "1878-1862",
number = "12",
volume = "5",
url = "https://hdl.handle.net/21.15107/rcub_cer_694"
}

Pavlović, M., Pavlovic, Lj. J., Maksimović, V. M., Nikolić, N. D.,& Popov, K. I.. (2010). Characterization and Morphology of Copper Powder Particles as a Function of Different Electrolytic Regimes. in International Journal of Electrochemical Science
Esg, Belgrade., 5(12), 1862-1878.
https://hdl.handle.net/21.15107/rcub_cer_694

Pavlović M, Pavlovic LJ, Maksimović VM, Nikolić ND, Popov KI. Characterization and Morphology of Copper Powder Particles as a Function of Different Electrolytic Regimes. in International Journal of Electrochemical Science. 2010;5(12):1862-1878.
https://hdl.handle.net/21.15107/rcub_cer_694 .

Pavlović, Miomir, Pavlovic, Lj. J., Maksimović, Vesna M., Nikolić, Nebojša D., Popov, Konstantin I., "Characterization and Morphology of Copper Powder Particles as a Function of Different Electrolytic Regimes" in International Journal of Electrochemical Science, 5, no. 12 (2010):1862-1878,
https://hdl.handle.net/21.15107/rcub_cer_694 .

TY  - JOUR
AU  - Nikolić, Nebojša D.
AU  - Branković, Goran
AU  - Maksimović, Vesna M.
AU  - Pavlović, Miomir
AU  - Popov, Konstantin I.
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5583
AB  - Electrodeposition of copper by pulsating overpotential (PO) regime in the range of hydrogen co-deposition was examined by scanning electron microscopy. It was found that the increase of the pause-to-pulse ratio produced a strong effect on the morphology of electrodeposited copper. Honeycomb-like copper structures were formed with the pause-to-pulse ratios up to 5. Up to this value of the pause-to-pulse ratio, the diameter of the holes formed by attached hydrogen bubbles was decreasing, while their number was increasing by the application of PO regime. The compactness of the formed honeycomb-like structures was also increasing with the increasing pause duration. The increase of the pause-to-pulse ratio suppressed a coalescence of neighboring hydrogen bubbles. Copper dendrites in the interior of the holes and at their shoulders were formed with the higher pause-to-pulse ratios. The size of the formed dendrites, as well as their number, increased with the increasing pause duration. Depth of holes was decreasing with the increasing pause duration. The increased compactness of the obtained structures was explained by the use of a set of equations describing the effect of square-wave PO on electrodeposition process.
PB  - Springer, New York
T2  - Journal of Solid State Electrochemistry
T1  - Application of pulsating overpotential regime on the formation of copper deposits in the range of hydrogen co-deposition
EP  - 338
IS  - 2
SP  - 331
VL  - 14
DO  - 10.1007/s10008-009-0842-1
ER  - 

@article{
author = "Nikolić, Nebojša D. and Branković, Goran and Maksimović, Vesna M. and Pavlović, Miomir and Popov, Konstantin I.",
year = "2010",
abstract = "Electrodeposition of copper by pulsating overpotential (PO) regime in the range of hydrogen co-deposition was examined by scanning electron microscopy. It was found that the increase of the pause-to-pulse ratio produced a strong effect on the morphology of electrodeposited copper. Honeycomb-like copper structures were formed with the pause-to-pulse ratios up to 5. Up to this value of the pause-to-pulse ratio, the diameter of the holes formed by attached hydrogen bubbles was decreasing, while their number was increasing by the application of PO regime. The compactness of the formed honeycomb-like structures was also increasing with the increasing pause duration. The increase of the pause-to-pulse ratio suppressed a coalescence of neighboring hydrogen bubbles. Copper dendrites in the interior of the holes and at their shoulders were formed with the higher pause-to-pulse ratios. The size of the formed dendrites, as well as their number, increased with the increasing pause duration. Depth of holes was decreasing with the increasing pause duration. The increased compactness of the obtained structures was explained by the use of a set of equations describing the effect of square-wave PO on electrodeposition process.",
publisher = "Springer, New York",
journal = "Journal of Solid State Electrochemistry",
title = "Application of pulsating overpotential regime on the formation of copper deposits in the range of hydrogen co-deposition",
pages = "338-331",
number = "2",
volume = "14",
doi = "10.1007/s10008-009-0842-1"
}

Nikolić, N. D., Branković, G., Maksimović, V. M., Pavlović, M.,& Popov, K. I.. (2010). Application of pulsating overpotential regime on the formation of copper deposits in the range of hydrogen co-deposition. in Journal of Solid State Electrochemistry
Springer, New York., 14(2), 331-338.
https://doi.org/10.1007/s10008-009-0842-1

Nikolić ND, Branković G, Maksimović VM, Pavlović M, Popov KI. Application of pulsating overpotential regime on the formation of copper deposits in the range of hydrogen co-deposition. in Journal of Solid State Electrochemistry. 2010;14(2):331-338.
doi:10.1007/s10008-009-0842-1 .

Nikolić, Nebojša D., Branković, Goran, Maksimović, Vesna M., Pavlović, Miomir, Popov, Konstantin I., "Application of pulsating overpotential regime on the formation of copper deposits in the range of hydrogen co-deposition" in Journal of Solid State Electrochemistry, 14, no. 2 (2010):331-338,
https://doi.org/10.1007/s10008-009-0842-1 . .

TY  - CHAP
AU  - Nikolić, Nebojša D.
AU  - Krstić, Snežana B.
AU  - Pavlović, L.J.
AU  - Pavlović, Miomir
AU  - Popov, Konstantin I.
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5581
AB  - The papers dealing with the effects of electrodeposition conditions on the decisive characteristics of electrolytic copper powder and their mutual relations are reviewed, and a semiquantitative theory based on them is presented. Also, the method for the estimation of the surface energy of disperse deposit formation based on the estimation of a surface area of deposits at different overpotentials is proposed. Then, the values of the surface energy of disperse deposit formation estimated in this way are used for the correlation of the specific surface of a powder to the electrodeposition conditions. The good agreement between the values of the specific surface of a powder determined in this way and those found in the literature is obtained. The apparent density of a powder as one of the decisive characteristics of metal powders is also correlated to the specific surface, and hence, to the electrodeposition conditions. In this chapter, the size of representative powder particle having the same specific surface as a powder is defined and the shape of the particle size distribution curve is analyzed. The problems concerning the effect of the particle shape and structure on the flowability of electrolytically formed copper powder are also discussed.© 2009 by Nova Science Publishers, Inc. All rights reserved.
PB  - Nova Science Publishers, Inc.
T2  - Electroanalytical Chemistry Research Trends
T1  - The mutual relation of decisive characteristics of electrolytic copper powder and effect of deposition conditions on them
EP  - 209
SP  - 185
UR  - https://hdl.handle.net/21.15107/rcub_cer_482
ER  - 

@inbook{
author = "Nikolić, Nebojša D. and Krstić, Snežana B. and Pavlović, L.J. and Pavlović, Miomir and Popov, Konstantin I.",
year = "2008",
abstract = "The papers dealing with the effects of electrodeposition conditions on the decisive characteristics of electrolytic copper powder and their mutual relations are reviewed, and a semiquantitative theory based on them is presented. Also, the method for the estimation of the surface energy of disperse deposit formation based on the estimation of a surface area of deposits at different overpotentials is proposed. Then, the values of the surface energy of disperse deposit formation estimated in this way are used for the correlation of the specific surface of a powder to the electrodeposition conditions. The good agreement between the values of the specific surface of a powder determined in this way and those found in the literature is obtained. The apparent density of a powder as one of the decisive characteristics of metal powders is also correlated to the specific surface, and hence, to the electrodeposition conditions. In this chapter, the size of representative powder particle having the same specific surface as a powder is defined and the shape of the particle size distribution curve is analyzed. The problems concerning the effect of the particle shape and structure on the flowability of electrolytically formed copper powder are also discussed.© 2009 by Nova Science Publishers, Inc. All rights reserved.",
publisher = "Nova Science Publishers, Inc.",
journal = "Electroanalytical Chemistry Research Trends",
booktitle = "The mutual relation of decisive characteristics of electrolytic copper powder and effect of deposition conditions on them",
pages = "209-185",
url = "https://hdl.handle.net/21.15107/rcub_cer_482"
}

Nikolić, N. D., Krstić, S. B., Pavlović, L.J., Pavlović, M.,& Popov, K. I.. (2008). The mutual relation of decisive characteristics of electrolytic copper powder and effect of deposition conditions on them. in Electroanalytical Chemistry Research Trends
Nova Science Publishers, Inc.., 185-209.
https://hdl.handle.net/21.15107/rcub_cer_482

Nikolić ND, Krstić SB, Pavlović L, Pavlović M, Popov KI. The mutual relation of decisive characteristics of electrolytic copper powder and effect of deposition conditions on them. in Electroanalytical Chemistry Research Trends. 2008;:185-209.
https://hdl.handle.net/21.15107/rcub_cer_482 .

Nikolić, Nebojša D., Krstić, Snežana B., Pavlović, L.J., Pavlović, Miomir, Popov, Konstantin I., "The mutual relation of decisive characteristics of electrolytic copper powder and effect of deposition conditions on them" in Electroanalytical Chemistry Research Trends (2008):185-209,
https://hdl.handle.net/21.15107/rcub_cer_482 .

TY  - JOUR
AU  - Nikolić, Nebojša D.
AU  - Pavlović, Ljubica
AU  - Branković, Goran
AU  - Pavlović, Miomir
AU  - Popov, Konstantin I.
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5580
AB  - The ionic equilibrium of the species in the CuSO4-H2SO4-H2O system was employed to systematize the conditions of copper electrodeposition leading to the formation of the honeycomb-like structure. The reason why CuSO4 concentrations higher than 0.15 M are unsuitable for the formation of honeycomb-like structures is shown. The range of H2SO4 concentrations enabling the formation of this type of structure was also determined. The conditions leading to the formation of the honeycomb-like structures are: electrodeposition from solutions with lower concentrations of Cu(II) ions (0.15 M CuSO4 and less) in a concentration range from 0.25 to 1.0 M H2SO4, at a temperature of 18.0±1.0°C and at overpotentials outside the plateau of the limiting diffusion current density at which hydrogen evolution is vigorous enough to change the hydrodynamic conditions in the near-electrode layer. .
AB  - Analizirana je jonska ravnoteža u sistemu CuSO4-H2SO4-H2O da bi se sistematizovali uslovi elektrohemijskog taloženja bakra koji dovode do formiranja strukture pčelinjeg saća. Pokazano je da su koncentracije CuSO4 veće od 0,15 M nepogodne za formiranje strukture pčelinjeg saća. Određen je i opseg koncentracija H2SO4 u kojem se formira ovakva struktura. Uslovi koji dovode do formiranja strukture pčelinjeg saća su: elektro- hemijsko taloženje iz rastvora sa koncentracijom Cu(II) od najviše 0,15 M i opsegom koncentracija H2SO4 od 0,25 do 1,0 M, temperature od 18,0±1,0°C, i na prenapetostima pozitivnijim od onih koji odgovaraju platou granične difuzione gustine struje, na kojima je izdvajanje vodonika dovoljno intenzivno da promeni hidrodinamičke uslove u prikatodnom sloju. .
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - The ionic equilibrium in the CuSO4-H2SO4-H2O system and the formation of the honeycomb-like structure during copper electrodeposition
T1  - Jonska ravnoteža u sistemu CuSO4-H2SO4-H2O i formiranje strukture pčelinjeg saća elektrohemijskim taloženjem bakra
EP  - 760
IS  - 7
SP  - 753
VL  - 73
DO  - 10.2298/JSC0807753N
ER  - 

@article{
author = "Nikolić, Nebojša D. and Pavlović, Ljubica and Branković, Goran and Pavlović, Miomir and Popov, Konstantin I.",
year = "2008",
abstract = "The ionic equilibrium of the species in the CuSO4-H2SO4-H2O system was employed to systematize the conditions of copper electrodeposition leading to the formation of the honeycomb-like structure. The reason why CuSO4 concentrations higher than 0.15 M are unsuitable for the formation of honeycomb-like structures is shown. The range of H2SO4 concentrations enabling the formation of this type of structure was also determined. The conditions leading to the formation of the honeycomb-like structures are: electrodeposition from solutions with lower concentrations of Cu(II) ions (0.15 M CuSO4 and less) in a concentration range from 0.25 to 1.0 M H2SO4, at a temperature of 18.0±1.0°C and at overpotentials outside the plateau of the limiting diffusion current density at which hydrogen evolution is vigorous enough to change the hydrodynamic conditions in the near-electrode layer. ., Analizirana je jonska ravnoteža u sistemu CuSO4-H2SO4-H2O da bi se sistematizovali uslovi elektrohemijskog taloženja bakra koji dovode do formiranja strukture pčelinjeg saća. Pokazano je da su koncentracije CuSO4 veće od 0,15 M nepogodne za formiranje strukture pčelinjeg saća. Određen je i opseg koncentracija H2SO4 u kojem se formira ovakva struktura. Uslovi koji dovode do formiranja strukture pčelinjeg saća su: elektro- hemijsko taloženje iz rastvora sa koncentracijom Cu(II) od najviše 0,15 M i opsegom koncentracija H2SO4 od 0,25 do 1,0 M, temperature od 18,0±1,0°C, i na prenapetostima pozitivnijim od onih koji odgovaraju platou granične difuzione gustine struje, na kojima je izdvajanje vodonika dovoljno intenzivno da promeni hidrodinamičke uslove u prikatodnom sloju. .",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "The ionic equilibrium in the CuSO4-H2SO4-H2O system and the formation of the honeycomb-like structure during copper electrodeposition, Jonska ravnoteža u sistemu CuSO4-H2SO4-H2O i formiranje strukture pčelinjeg saća elektrohemijskim taloženjem bakra",
pages = "760-753",
number = "7",
volume = "73",
doi = "10.2298/JSC0807753N"
}

Nikolić, N. D., Pavlović, L., Branković, G., Pavlović, M.,& Popov, K. I.. (2008). The ionic equilibrium in the CuSO4-H2SO4-H2O system and the formation of the honeycomb-like structure during copper electrodeposition. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 73(7), 753-760.
https://doi.org/10.2298/JSC0807753N

Nikolić ND, Pavlović L, Branković G, Pavlović M, Popov KI. The ionic equilibrium in the CuSO4-H2SO4-H2O system and the formation of the honeycomb-like structure during copper electrodeposition. in Journal of the Serbian Chemical Society. 2008;73(7):753-760.
doi:10.2298/JSC0807753N .

Nikolić, Nebojša D., Pavlović, Ljubica, Branković, Goran, Pavlović, Miomir, Popov, Konstantin I., "The ionic equilibrium in the CuSO4-H2SO4-H2O system and the formation of the honeycomb-like structure during copper electrodeposition" in Journal of the Serbian Chemical Society, 73, no. 7 (2008):753-760,
https://doi.org/10.2298/JSC0807753N . .

TY  - JOUR
AU  - Nikolić, Nebojša D.
AU  - Pavlovic, Lj. J.
AU  - Pavlović, Miomir
AU  - Popov, Konstantin I.
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5570
AB  - Copper powder particles formed by electrolysis under different quantities of evolved hydrogen were analyzed using the scanning electron microscopy (SEM) technique. It was found that the structure of the powder particles strongly depended on the quantity of evolved hydrogen that is, two types of powder particles were formed, depending on the quantity of evolved hydrogen. One type of particle was formed during the electrodeposition of copper when the quantity of evolved hydrogen was insufficient to change the hydrodynamic conditions in the near-electrode layer. This particle type comprised dendrites constructed of corncob-like structures as the basic element. The other type of particle was cauliflower-like and was formed when the quantity of evolved hydrogen was sufficient to change the hydrodynamic conditions in the near-electrode layer. However, both types of particle consisted of agglomerates of copper grains. The only difference lay in the size of the copper grains of which the agglomerates were constituted. The size of the grains was a function of the electrodeposition overpotential and, consequently, the quantity of evolved hydrogen, with a tendency to attain a steady value when the electrodeposition overpotential was increased.
PB  - Elsevier Science Sa, Lausanne
T2  - Powder Technology
T1  - Morphologies of electrochemically formed copper powder particles and their dependence on the quantity of evolved hydrogen
EP  - 201
IS  - 3
SP  - 195
VL  - 185
DO  - 10.1016/j.powtec.2007.10.014
ER  - 

@article{
author = "Nikolić, Nebojša D. and Pavlovic, Lj. J. and Pavlović, Miomir and Popov, Konstantin I.",
year = "2008",
abstract = "Copper powder particles formed by electrolysis under different quantities of evolved hydrogen were analyzed using the scanning electron microscopy (SEM) technique. It was found that the structure of the powder particles strongly depended on the quantity of evolved hydrogen that is, two types of powder particles were formed, depending on the quantity of evolved hydrogen. One type of particle was formed during the electrodeposition of copper when the quantity of evolved hydrogen was insufficient to change the hydrodynamic conditions in the near-electrode layer. This particle type comprised dendrites constructed of corncob-like structures as the basic element. The other type of particle was cauliflower-like and was formed when the quantity of evolved hydrogen was sufficient to change the hydrodynamic conditions in the near-electrode layer. However, both types of particle consisted of agglomerates of copper grains. The only difference lay in the size of the copper grains of which the agglomerates were constituted. The size of the grains was a function of the electrodeposition overpotential and, consequently, the quantity of evolved hydrogen, with a tendency to attain a steady value when the electrodeposition overpotential was increased.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Powder Technology",
title = "Morphologies of electrochemically formed copper powder particles and their dependence on the quantity of evolved hydrogen",
pages = "201-195",
number = "3",
volume = "185",
doi = "10.1016/j.powtec.2007.10.014"
}

Nikolić, N. D., Pavlovic, Lj. J., Pavlović, M.,& Popov, K. I.. (2008). Morphologies of electrochemically formed copper powder particles and their dependence on the quantity of evolved hydrogen. in Powder Technology
Elsevier Science Sa, Lausanne., 185(3), 195-201.
https://doi.org/10.1016/j.powtec.2007.10.014

Nikolić ND, Pavlovic LJ, Pavlović M, Popov KI. Morphologies of electrochemically formed copper powder particles and their dependence on the quantity of evolved hydrogen. in Powder Technology. 2008;185(3):195-201.
doi:10.1016/j.powtec.2007.10.014 .

Nikolić, Nebojša D., Pavlovic, Lj. J., Pavlović, Miomir, Popov, Konstantin I., "Morphologies of electrochemically formed copper powder particles and their dependence on the quantity of evolved hydrogen" in Powder Technology, 185, no. 3 (2008):195-201,
https://doi.org/10.1016/j.powtec.2007.10.014 . .