The effect of hydrogen co-deposition on the morphology of copper electrodeposits. II. Correlation between the properties of electrolytic solutions and the quantity of evolved hydrogen
Само за регистроване кориснике
2008
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Formation of irregular deposits by electrodeposition from acid sulfate solutions of various H2SO4 concentrations was examined by the determination of the average current efficiency of hydrogen evolution and by the scanning electron microscopic (SEM) analysis of the copper deposits morphology. Copper dendrites were the dominant morphological form obtained at overpotentials corresponding to the plateaus of the limiting diffusion current density. The number of the formed dendrites was increasing with the decreasing H2SO4 concentration. Holes formed due to the attached hydrogen bubbles were the basic morphological form of electrodeposited copper from all analyzed copper sulfate solutions at overpotentials outside the plateau of the limiting diffusion current density. The honeycomb-like structures (holes of the detached hydrogen bubbles with cauliflower-like agglomerates of copper grains between them) were formed if electrodepositions were performed from 0.15 M CuSO4 in both 0.250 M and 1.0... M H2SO4. On the other hand, aside from the holes and cauliflower-like forms, electrodeposition from 0.15 M CuSO4 in 0.125 M H2SO4 led to the formation of degenerated dendrites and dendritic particles inside channels formed of evolved hydrogen. Holes with shoulders of degenerated dendrites were also formed. The formation of different morphological forms under hydrogen co-deposition was discussed in the terms of hydrodynamic conditions in the near-electrode layer using the values for the break-off diameter of hydrogen bubbles.
Кључне речи:
sulfuric acid / scanning electron microscope (SEM) / hydrogen evolution / electrodeposition / copperИзвор:
Journal of Electroanalytical Chemistry, 2008, 621, 1, 13-21Издавач:
- Elsevier Science Sa, Lausanne
Финансирање / пројекти:
- Таложење ултрафиних прахова метала и легура и наноструктурираних површина електрохемијским поступцима (RS-142032)
DOI: 10.1016/j.jelechem.2008.04.006
ISSN: 1572-6657
WoS: 000259690500003
Scopus: 2-s2.0-49849103835
Институција/група
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Nikolic, Nebojša D AU - Branković, Goran AU - Pavlović, Miomir G. AU - Popov, Konstantin I PY - 2008 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/284 AB - Formation of irregular deposits by electrodeposition from acid sulfate solutions of various H2SO4 concentrations was examined by the determination of the average current efficiency of hydrogen evolution and by the scanning electron microscopic (SEM) analysis of the copper deposits morphology. Copper dendrites were the dominant morphological form obtained at overpotentials corresponding to the plateaus of the limiting diffusion current density. The number of the formed dendrites was increasing with the decreasing H2SO4 concentration. Holes formed due to the attached hydrogen bubbles were the basic morphological form of electrodeposited copper from all analyzed copper sulfate solutions at overpotentials outside the plateau of the limiting diffusion current density. The honeycomb-like structures (holes of the detached hydrogen bubbles with cauliflower-like agglomerates of copper grains between them) were formed if electrodepositions were performed from 0.15 M CuSO4 in both 0.250 M and 1.0 M H2SO4. On the other hand, aside from the holes and cauliflower-like forms, electrodeposition from 0.15 M CuSO4 in 0.125 M H2SO4 led to the formation of degenerated dendrites and dendritic particles inside channels formed of evolved hydrogen. Holes with shoulders of degenerated dendrites were also formed. The formation of different morphological forms under hydrogen co-deposition was discussed in the terms of hydrodynamic conditions in the near-electrode layer using the values for the break-off diameter of hydrogen bubbles. PB - Elsevier Science Sa, Lausanne T2 - Journal of Electroanalytical Chemistry T1 - The effect of hydrogen co-deposition on the morphology of copper electrodeposits. II. Correlation between the properties of electrolytic solutions and the quantity of evolved hydrogen EP - 21 IS - 1 SP - 13 VL - 621 DO - 10.1016/j.jelechem.2008.04.006 ER -
@article{ author = "Nikolic, Nebojša D and Branković, Goran and Pavlović, Miomir G. and Popov, Konstantin I", year = "2008", abstract = "Formation of irregular deposits by electrodeposition from acid sulfate solutions of various H2SO4 concentrations was examined by the determination of the average current efficiency of hydrogen evolution and by the scanning electron microscopic (SEM) analysis of the copper deposits morphology. Copper dendrites were the dominant morphological form obtained at overpotentials corresponding to the plateaus of the limiting diffusion current density. The number of the formed dendrites was increasing with the decreasing H2SO4 concentration. Holes formed due to the attached hydrogen bubbles were the basic morphological form of electrodeposited copper from all analyzed copper sulfate solutions at overpotentials outside the plateau of the limiting diffusion current density. The honeycomb-like structures (holes of the detached hydrogen bubbles with cauliflower-like agglomerates of copper grains between them) were formed if electrodepositions were performed from 0.15 M CuSO4 in both 0.250 M and 1.0 M H2SO4. On the other hand, aside from the holes and cauliflower-like forms, electrodeposition from 0.15 M CuSO4 in 0.125 M H2SO4 led to the formation of degenerated dendrites and dendritic particles inside channels formed of evolved hydrogen. Holes with shoulders of degenerated dendrites were also formed. The formation of different morphological forms under hydrogen co-deposition was discussed in the terms of hydrodynamic conditions in the near-electrode layer using the values for the break-off diameter of hydrogen bubbles.", publisher = "Elsevier Science Sa, Lausanne", journal = "Journal of Electroanalytical Chemistry", title = "The effect of hydrogen co-deposition on the morphology of copper electrodeposits. II. Correlation between the properties of electrolytic solutions and the quantity of evolved hydrogen", pages = "21-13", number = "1", volume = "621", doi = "10.1016/j.jelechem.2008.04.006" }
Nikolic, N. D., Branković, G., Pavlović, M. G.,& Popov, K. I.. (2008). The effect of hydrogen co-deposition on the morphology of copper electrodeposits. II. Correlation between the properties of electrolytic solutions and the quantity of evolved hydrogen. in Journal of Electroanalytical Chemistry Elsevier Science Sa, Lausanne., 621(1), 13-21. https://doi.org/10.1016/j.jelechem.2008.04.006
Nikolic ND, Branković G, Pavlović MG, Popov KI. The effect of hydrogen co-deposition on the morphology of copper electrodeposits. II. Correlation between the properties of electrolytic solutions and the quantity of evolved hydrogen. in Journal of Electroanalytical Chemistry. 2008;621(1):13-21. doi:10.1016/j.jelechem.2008.04.006 .
Nikolic, Nebojša D, Branković, Goran, Pavlović, Miomir G., Popov, Konstantin I, "The effect of hydrogen co-deposition on the morphology of copper electrodeposits. II. Correlation between the properties of electrolytic solutions and the quantity of evolved hydrogen" in Journal of Electroanalytical Chemistry, 621, no. 1 (2008):13-21, https://doi.org/10.1016/j.jelechem.2008.04.006 . .