Mechanism of Chromium Electrodeposition from Cr(III) Baths on Nickel and Chromium Electrode Surfaces

doi:10.20964/2020.09.23

IMR OpenIR

	Mechanism of Chromium Electrodeposition from Cr(III) Baths on Nickel and Chromium Electrode Surfaces
	Zhao, Huan 1,2; Liu, Weihua 2; Li, Qingpeng 2; Zhang, Bo 2; Liu, Jianguo 2; Yan, Chuanwei 2; Liu, Chunming 1
通讯作者	Zhao, Huan(hzhao@imr.ac.cn)
	2020-09-01
发表期刊	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN	1452-3981
卷号	15 期号:9 页码:8979-8989
摘要	The 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.
关键词	Trivalent chromium Hard chromium electrodeposition mechanism Nickel electrode Chromium coating electrode
DOI	10.20964/2020.09.23
收录类别	SCI
语种	英语
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:000570963900048
出版者	ESG
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/140619
专题	中国科学院金属研究所
通讯作者	Zhao, Huan
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 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.