Preparation of La-Cr Perovskite Coating Using Electrodeposition Method

doi:10.1149/2.0971614jes

IMR OpenIR

	Preparation of La-Cr Perovskite Coating Using Electrodeposition Method
	Zhang, Xue; You, Pengfei; Luo, Mengqi; Zeng, Chaoliu
通讯作者	Zeng, Chaoliu(clzeng@imr.ac.cn)
	2016
发表期刊	JOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN	0013-4651
卷号	163 期号:14 页码:D821-D828
摘要	An adhesive LaCrO3 perovskite coating has been prepared on stainless steel substrate by cathodic electrodeposition from aqueous solution 0.03 M La(CH3COO)(3) + 0.03 M CrCl3 + 0.03 M Na3C6H5O7, followed by heat-treatment at 800 degrees C in air. The electrodeposition of La-Cr coatings has been examined in the solution with pH of 2 similar to 3 at the current density of 1 similar to 5 mA cm(-2). It is shown that the change of pH by even 0.1 can affect obviously the deposition of La-Cr coatings, and increasing the current density will lead to the generation of more cracks in the coatings. A more uniform and compact La-Cr coating can be obtained in the solution with the optimized pH value of 2.7 at the optimized current density of 1 mA cm(-2). The La and Cr deposits change from their metallic states to the hydroxides during electrodeposition, corresponding to the increase in the pH with time. The as-prepared La-Cr coating is rich in La, due to the strong coordination of trivalent chromium with complex agent in the bath. The outward diffusion of Cr from the stainless steel substrate supplies the as-prepared La-rich coating to form LaCrO3 during heat-treatment. (C) The Author(s) 2016. Published by ECS. All rights reserved.
资助者	National Natural Science Foundation of China
DOI	10.1149/2.0971614jes
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[50771101]
WOS研究方向	Electrochemistry ; Materials Science
WOS类目	Electrochemistry ; Materials Science, Coatings & Films
WOS记录号	WOS:000393852200085
出版者	ELECTROCHEMICAL SOC INC
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/321006/123774
专题	中国科学院金属研究所
通讯作者	Zeng, Chaoliu
作者单位	Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xue,You, Pengfei,Luo, Mengqi,et al. Preparation of La-Cr Perovskite Coating Using Electrodeposition Method[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2016,163(14):D821-D828.
APA	Zhang, Xue,You, Pengfei,Luo, Mengqi,&Zeng, Chaoliu.(2016).Preparation of La-Cr Perovskite Coating Using Electrodeposition Method.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,163(14),D821-D828.
MLA	Zhang, Xue,et al."Preparation of La-Cr Perovskite Coating Using Electrodeposition Method".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 163.14(2016):D821-D828.