Electrodeposition and morphology of Ni, Co and Ni-Co alloy powders - Part II. Ammonium chloride supporting electrolyte
Apstrakt
Polarization characteristics of the processes of Ni and Co powders and Ni-Co alloy powders electrodeposition from ammonium chloride containing supporting electrolyte and their morphologies are investigated as a function of Ni2+ and Co2+ ions concentrations. It is found that the shape of the polarization curves in all cases is practically defined by the shape of the polarization curve for hydrogen evolution. It is shown that correct polarization curves, as well as the morphology of electrodeposited powders are sensitive to the ratio of Ni2+/CO2+ ions concentration. Characteristic feature of powder particles obtained from chloride containing electrolytes is the presence of cone-shaped cavities. In the case of Ni powder cauliflower and spongy type particles are detected, while Co powder contains only spongy type particles. In all cases of alloy powder formation anomalous type of co-deposition is detected. (c) 2006 Elsevier Ltd. All rights reserved.
Ključne reči:
Ni / Co / Ni-Co alloy powders / anomalous co-deposition / NH4Cl supporting electrolyte / polarization curves / hydrogen evolution / morphology / alloy powder compositionIzvor:
Electrochimica Acta, 2007, 52, 12, 4254-4263
DOI: 10.1016/j.electacta.2006.12.003
ISSN: 0013-4686
WoS: 000245365900045
Scopus: 2-s2.0-33847395310
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Jović, Vladimir D. AU - Jovic, B. M. AU - Maksimović, Vesna AU - Pavlović, Miomir G. PY - 2007 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3179 AB - Polarization characteristics of the processes of Ni and Co powders and Ni-Co alloy powders electrodeposition from ammonium chloride containing supporting electrolyte and their morphologies are investigated as a function of Ni2+ and Co2+ ions concentrations. It is found that the shape of the polarization curves in all cases is practically defined by the shape of the polarization curve for hydrogen evolution. It is shown that correct polarization curves, as well as the morphology of electrodeposited powders are sensitive to the ratio of Ni2+/CO2+ ions concentration. Characteristic feature of powder particles obtained from chloride containing electrolytes is the presence of cone-shaped cavities. In the case of Ni powder cauliflower and spongy type particles are detected, while Co powder contains only spongy type particles. In all cases of alloy powder formation anomalous type of co-deposition is detected. (c) 2006 Elsevier Ltd. All rights reserved. T2 - Electrochimica Acta T1 - Electrodeposition and morphology of Ni, Co and Ni-Co alloy powders - Part II. Ammonium chloride supporting electrolyte VL - 52 IS - 12 SP - 4254 EP - 4263 DO - 10.1016/j.electacta.2006.12.003 ER -
@article{ author = "Jović, Vladimir D. and Jovic, B. M. and Maksimović, Vesna and Pavlović, Miomir G.", year = "2007", abstract = "Polarization characteristics of the processes of Ni and Co powders and Ni-Co alloy powders electrodeposition from ammonium chloride containing supporting electrolyte and their morphologies are investigated as a function of Ni2+ and Co2+ ions concentrations. It is found that the shape of the polarization curves in all cases is practically defined by the shape of the polarization curve for hydrogen evolution. It is shown that correct polarization curves, as well as the morphology of electrodeposited powders are sensitive to the ratio of Ni2+/CO2+ ions concentration. Characteristic feature of powder particles obtained from chloride containing electrolytes is the presence of cone-shaped cavities. In the case of Ni powder cauliflower and spongy type particles are detected, while Co powder contains only spongy type particles. In all cases of alloy powder formation anomalous type of co-deposition is detected. (c) 2006 Elsevier Ltd. All rights reserved.", journal = "Electrochimica Acta", title = "Electrodeposition and morphology of Ni, Co and Ni-Co alloy powders - Part II. Ammonium chloride supporting electrolyte", volume = "52", number = "12", pages = "4254-4263", doi = "10.1016/j.electacta.2006.12.003" }
Jović, V. D., Jovic, B. M., Maksimović, V.,& Pavlović, M. G.. (2007). Electrodeposition and morphology of Ni, Co and Ni-Co alloy powders - Part II. Ammonium chloride supporting electrolyte. in Electrochimica Acta, 52(12), 4254-4263. https://doi.org/10.1016/j.electacta.2006.12.003
Jović VD, Jovic BM, Maksimović V, Pavlović MG. Electrodeposition and morphology of Ni, Co and Ni-Co alloy powders - Part II. Ammonium chloride supporting electrolyte. in Electrochimica Acta. 2007;52(12):4254-4263. doi:10.1016/j.electacta.2006.12.003 .
Jović, Vladimir D., Jovic, B. M., Maksimović, Vesna, Pavlović, Miomir G., "Electrodeposition and morphology of Ni, Co and Ni-Co alloy powders - Part II. Ammonium chloride supporting electrolyte" in Electrochimica Acta, 52, no. 12 (2007):4254-4263, https://doi.org/10.1016/j.electacta.2006.12.003 . .