On the development of metallic inert anode for molten CaCl2-CaO System

doi:10.1016/j.electacta.2011.01.026

IMR OpenIR

	On the development of metallic inert anode for molten CaCl2-CaO System
	Yin, Huayi 1; Gao, Lili 1; Zhu, Hua 1; Mao, Xuhui 1; Gan, Fuxing 1,2; Wang, Dihua 1,2
通讯作者	Wang, Dihua(wangdh@whu.edu.cn)
	2011-03-30
发表期刊	ELECTROCHIMICA ACTA
ISSN	0013-4686
卷号	56 期号:9 页码:3296-3302
摘要	Some fundamental aspects related to inert anode development in molten CaCl2-CaO were investigated based on thermodynamic analysis, electrochemistry of metals and solubility of oxide measurements. The Gibbs free energy change of several key anodic reactions including electro-stripping of metals, electro-formation of metallic oxides, electro-dissolution of metallic oxides as well as oxygen and chlorine evolution was calculated and documented, for the first time, as a reference to develop metallic inert anode in chloride based melts. The anodic behaviors of typical metals (Ni, Fe, Co, Mo, Cu, Ag, and Pt) in the melt were investigated. The results confirmed the thermodynamic stability order of metals in the melts and revealed that surface oxide formation can increase the stability of the electrodes in CaO containing melt. Furthermore, solubility of several oxides (NiO, Fe2O3, Cr2O3, Co3O4, NiFe2O4) in pure CaCl2 or CaCl2-CaO melts was measured to evaluate the stability of oxide coating or a cermet inert anode in the melt. It was found that the solubility of NiO decreased with increasing CaO concentration, while that of Fe2O3 increased. Ni coated with NiO film had much higher stability during anodic polarization. (C) 2011 Elsevier Ltd. All rights reserved.
关键词	Inert anode Anodic behavior Chloride melts Solubility of oxide
资助者	National Nature Science Foundation of China ; Program for New Century Excellent Talents in University ; Ministry of Education of China ; International Cooperation Foundation ; Ministry of Science and Technology of China
DOI	10.1016/j.electacta.2011.01.026
收录类别	SCI
语种	英语
资助项目	National Nature Science Foundation of China[20873093] ; National Nature Science Foundation of China[50934001] ; Program for New Century Excellent Talents in University ; Ministry of Education of China[NCET-08-0416] ; International Cooperation Foundation ; Ministry of Science and Technology of China[2009DFA62190]
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:000290084700026
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：63[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/321006/106163
专题	中国科学院金属研究所
通讯作者	Wang, Dihua
作者单位	1.Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yin, Huayi,Gao, Lili,Zhu, Hua,et al. On the development of metallic inert anode for molten CaCl2-CaO System[J]. ELECTROCHIMICA ACTA,2011,56(9):3296-3302.
APA	Yin, Huayi,Gao, Lili,Zhu, Hua,Mao, Xuhui,Gan, Fuxing,&Wang, Dihua.(2011).On the development of metallic inert anode for molten CaCl2-CaO System.ELECTROCHIMICA ACTA,56(9),3296-3302.
MLA	Yin, Huayi,et al."On the development of metallic inert anode for molten CaCl2-CaO System".ELECTROCHIMICA ACTA 56.9(2011):3296-3302.