Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions
2019
Преузимање 🢃
Аутори
Nikolić, Nebojša D.Avramović, Ljiljana
Ivanović, Evica
Maksimović, Vesna M.
Baščarević, Zvezdana
Ignjatović, Nenad
Чланак у часопису (Рецензирана верзија)
Метаподаци
Приказ свих података о документуАпстракт
Production of copper powders by the potentiostatic electrolysis under different hydrogen evolution conditions was investigated. Copper powders were characterized by the scanning electron microscope (SEM), X-ray diffraction (XRD), particle size distribution (PSD), and by the determination of the specific surface area (SSA) of the formed powders. Depending on quantity of hydrogen generated during electrolysis, the two types of particles were formed: dendrites and cauliflower-like particles. The dendrites were formed without, while cauliflower-like particles with the quantity of evolved hydrogen enough to achieve strong effect on hydrodynamic conditions in the near-electrode layer. Although macro structure of the particles was very different, they showed similar micro structure. Namely, both types of the particles consisted of small agglomerates of approximately spherical Cu grains at the micro level. The existence of the spherical morphology was just responsible for random orientation of... Cu crystallites in both types of particles. The SSA of cauliflower-like particles was more than two times larger than that of the dendrites, while their size was considerably smaller than that of the dendritic particles. In this way, the useful benefit of Cu powder formation in the conditions of vigorous hydrogen evolution is shown.
Кључне речи:
copper / electrolysis / particle size distribution (PSD) / particles / specific surface area (SSA)Извор:
Transactions of Nonferrous Metals Society of China, 2019, 29, 6, 1275-1284Издавач:
- Elsevier
Финансирање / пројекти:
- Електрохемијска синтеза и карактеризација наноструктурираних функционалних материјала за примену у новим технологијама (RS-MESTD-Basic Research (BR or ON)-172046)
Напомена:
- This is the peer reviewed version of the following article: Nikolić, N.D., Avramović, L., Ivanović, E.R., Maksimović, V.M., Baščarević, Z., Ignjatović, N., 2019. Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions. Transactions of Nonferrous Metals Society of China 29, 1275–1284. https://doi.org/10.1016/S1003- 6326(19)65034-X
- http://cer.ihtm.bg.ac.rs/handle/123456789/3049
DOI: 10.1016/S1003-6326(19)65034-X
ISSN: 1003-6326
WoS: 000474207600015
Scopus: 2-s2.0-85068405574
URI
http://www.sciencedirect.com/science/article/pii/S100363261965034Xhttp://dais.sanu.ac.rs/123456789/6371
https://cer.ihtm.bg.ac.rs/handle/123456789/3048
Институција/група
IHTMTY - JOUR AU - Nikolić, Nebojša D. AU - Avramović, Ljiljana AU - Ivanović, Evica AU - Maksimović, Vesna M. AU - Baščarević, Zvezdana AU - Ignjatović, Nenad PY - 2019 UR - http://www.sciencedirect.com/science/article/pii/S100363261965034X UR - http://dais.sanu.ac.rs/123456789/6371 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3048 AB - Production of copper powders by the potentiostatic electrolysis under different hydrogen evolution conditions was investigated. Copper powders were characterized by the scanning electron microscope (SEM), X-ray diffraction (XRD), particle size distribution (PSD), and by the determination of the specific surface area (SSA) of the formed powders. Depending on quantity of hydrogen generated during electrolysis, the two types of particles were formed: dendrites and cauliflower-like particles. The dendrites were formed without, while cauliflower-like particles with the quantity of evolved hydrogen enough to achieve strong effect on hydrodynamic conditions in the near-electrode layer. Although macro structure of the particles was very different, they showed similar micro structure. Namely, both types of the particles consisted of small agglomerates of approximately spherical Cu grains at the micro level. The existence of the spherical morphology was just responsible for random orientation of Cu crystallites in both types of particles. The SSA of cauliflower-like particles was more than two times larger than that of the dendrites, while their size was considerably smaller than that of the dendritic particles. In this way, the useful benefit of Cu powder formation in the conditions of vigorous hydrogen evolution is shown. PB - Elsevier T2 - Transactions of Nonferrous Metals Society of China T1 - Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions VL - 29 IS - 6 SP - 1275 EP - 1284 DO - 10.1016/S1003-6326(19)65034-X ER -
@article{ author = "Nikolić, Nebojša D. and Avramović, Ljiljana and Ivanović, Evica and Maksimović, Vesna M. and Baščarević, Zvezdana and Ignjatović, Nenad", year = "2019", abstract = "Production of copper powders by the potentiostatic electrolysis under different hydrogen evolution conditions was investigated. Copper powders were characterized by the scanning electron microscope (SEM), X-ray diffraction (XRD), particle size distribution (PSD), and by the determination of the specific surface area (SSA) of the formed powders. Depending on quantity of hydrogen generated during electrolysis, the two types of particles were formed: dendrites and cauliflower-like particles. The dendrites were formed without, while cauliflower-like particles with the quantity of evolved hydrogen enough to achieve strong effect on hydrodynamic conditions in the near-electrode layer. Although macro structure of the particles was very different, they showed similar micro structure. Namely, both types of the particles consisted of small agglomerates of approximately spherical Cu grains at the micro level. The existence of the spherical morphology was just responsible for random orientation of Cu crystallites in both types of particles. The SSA of cauliflower-like particles was more than two times larger than that of the dendrites, while their size was considerably smaller than that of the dendritic particles. In this way, the useful benefit of Cu powder formation in the conditions of vigorous hydrogen evolution is shown.", publisher = "Elsevier", journal = "Transactions of Nonferrous Metals Society of China", title = "Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions", volume = "29", number = "6", pages = "1275-1284", doi = "10.1016/S1003-6326(19)65034-X" }
Nikolić, N. D., Avramović, L., Ivanović, E., Maksimović, V. M., Baščarević, Z.,& Ignjatović, N.. (2019). Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions. in Transactions of Nonferrous Metals Society of China Elsevier., 29(6), 1275-1284. https://doi.org/10.1016/S1003-6326(19)65034-X
Nikolić ND, Avramović L, Ivanović E, Maksimović VM, Baščarević Z, Ignjatović N. Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions. in Transactions of Nonferrous Metals Society of China. 2019;29(6):1275-1284. doi:10.1016/S1003-6326(19)65034-X .
Nikolić, Nebojša D., Avramović, Ljiljana, Ivanović, Evica, Maksimović, Vesna M., Baščarević, Zvezdana, Ignjatović, Nenad, "Comparative morphological and crystallographic analysis of copper powders obtained under different electrolysis conditions" in Transactions of Nonferrous Metals Society of China, 29, no. 6 (2019):1275-1284, https://doi.org/10.1016/S1003-6326(19)65034-X . .