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Mechanism of Chromium Electrodeposition from Cr(III) Baths on Nickel and Chromium Electrode Surfaces
Zhao, Huan1,2; Liu, Weihua2; Li, Qingpeng2; Zhang, Bo2; Liu, Jianguo2; Yan, Chuanwei2; Liu, Chunming1
Corresponding AuthorZhao, Huan(hzhao@imr.ac.cn)
2020-09-01
Source PublicationINTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN1452-3981
Volume15Issue:9Pages:8979-8989
AbstractThe electrode state changes with the thickening of the coating in Cr(III) thick chromium plating. The deposition of Cr(III) is carried out on the substrate at the beginning of deposition and on the chromium coating when the chromium coating becomes thicker. The aim of this work is to study the influence of the change of electrode state on the reduction mechanism of trivalent chromium. The electrodeposition mechanism of Cr(III) is studied by cyclic voltammetry, electrochemical impendance spectroscopy, chronoamperometry and polarization technique. The results show that the reduction of Cr(III) on chromium coating electrode has a negative deposition potential, higher charge transfer resistance, higher activation energy, and lower diffusion coefficient than those on the nickel electrode, the reduction of Cr(III) is more difficult on chromium coating electrode. The change of electrode state is one of the reasons for the difficulty in thickening of chromium coating.
KeywordTrivalent chromium Hard chromium electrodeposition mechanism Nickel electrode Chromium coating electrode
DOI10.20964/2020.09.23
Indexed BySCI
Language英语
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000570963900048
PublisherESG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140619
Collection中国科学院金属研究所
Corresponding AuthorZhao, Huan
Affiliation1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Huan,Liu, Weihua,Li, Qingpeng,et al. Mechanism of Chromium Electrodeposition from Cr(III) Baths on Nickel and Chromium Electrode Surfaces[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2020,15(9):8979-8989.
APA Zhao, Huan.,Liu, Weihua.,Li, Qingpeng.,Zhang, Bo.,Liu, Jianguo.,...&Liu, Chunming.(2020).Mechanism of Chromium Electrodeposition from Cr(III) Baths on Nickel and Chromium Electrode Surfaces.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,15(9),8979-8989.
MLA Zhao, Huan,et al."Mechanism of Chromium Electrodeposition from Cr(III) Baths on Nickel and Chromium Electrode Surfaces".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 15.9(2020):8979-8989.
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