Investigations on Reaction Pathway and Microstructure Transformations during Electrochemical Reduction of Cr2O3 in Molten CaCl2 | |
Liu, Zheng-wei1,2,3; Zhang, Hong-ling1,2; Pei, Li-li1,2; Zhu, Guang-jin1,2; Xu, Hong-bin1,2; Zhang, Yi1,2 | |
2016 | |
Source Publication | JOURNAL OF THE ELECTROCHEMICAL SOCIETY
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ISSN | 0013-4651 |
Volume | 163Issue:9Pages:H781-H786 |
Abstract | The reaction pathway and microstructure transformations in the electrochemical reduction of chromium oxide (Cr2O3) to chromium (Cr) metal in CaCl2 molten salt were investigated. Some partially electrolyzed products and Cr metal were prepared by terminating the reduction process after different time periods, which were further characterized by means of XRD and SEM et al. Calcium chromite (CaCr2O4) was chemically in-situ synthesized in CaCl2 molten salt using Cr2O3 and CaO as raw materials, and its cyclic voltammogram test and electrolysis process were examined. The reaction pathway in the electrochemical reduction of Cr2O3 was hence demonstrated to proceed through a number of well-defined reaction steps, one of which involved the chemical formation and decomposition of CaCr2O4. Meanwhile, themicrostructures changed dramatically with the process progresses. An observation-based assumption was proposed to account for the different morphologies of cubic and nodular Cr particles formed at the early and later stages, respectively. (C) 2016 The Electrochemical Society. All rights reserved. |
Subtype | Article |
WOS Headings | Science & Technology ; Physical Sciences ; Technology |
DOI | 10.1149/2.0621609jes |
Indexed By | SCI |
Language | 英语 |
WOS Keyword | CALCIUM-CHLORIDE ; TITANIUM-DIOXIDE ; CHROMIUM POWDER ; OXIDE ; ELECTRODEPOSITION ; SILICON ; ALLOYS ; SALTS ; TA2O5 ; MELTS |
WOS Research Area | Electrochemistry ; Materials Science |
WOS Subject | Electrochemistry ; Materials Science, Coatings & Films |
Funding Organization | National Basic Research Program (973 Program) of China(2013CB632600) ; National Natural Science Foundation of China(11204304 ; Hubei Zhenhua Chemical Co., LTD. ; 21406233) |
WOS ID | WOS:000388988100118 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.ipe.ac.cn/handle/122111/21683 |
Collection | 湿法冶金清洁生产技术国家工程实验室 |
Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100190, Peoples R China |
Recommended Citation GB/T 7714 | Liu, Zheng-wei,Zhang, Hong-ling,Pei, Li-li,et al. Investigations on Reaction Pathway and Microstructure Transformations during Electrochemical Reduction of Cr2O3 in Molten CaCl2[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2016,163(9):H781-H786. |
APA | Liu, Zheng-wei,Zhang, Hong-ling,Pei, Li-li,Zhu, Guang-jin,Xu, Hong-bin,&Zhang, Yi.(2016).Investigations on Reaction Pathway and Microstructure Transformations during Electrochemical Reduction of Cr2O3 in Molten CaCl2.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,163(9),H781-H786. |
MLA | Liu, Zheng-wei,et al."Investigations on Reaction Pathway and Microstructure Transformations during Electrochemical Reduction of Cr2O3 in Molten CaCl2".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 163.9(2016):H781-H786. |
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