Electrochemical Preparation of V2O3 from NaVO3 and Its Reduction Mechanism
Weng Wei1; Wang Mingyong2; Gong Xuzhong2; Wang Zhi2; Wang Dong2; Guo Zhancheng1
2017-10-01
发表期刊JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
ISSN1000-2413
卷号32期号:5页码:1019-1024
摘要

Vanadium trioxide (V2O3) was directly prepared by NaVO3 electrolysis in NaCl molten salts. Electrolysis products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The existing state and electrochemical behavior of NaVO3 were also studied. The results indicated that V2O3 can be obtained from NaVO3. VC and C were also formed at high cell voltage, high temperature, and long electrolysis time. During electrolysis, NaVO3 was dissociated to Na+ and VO3- in NaCl molten salt. NaVO3 was initially electro-reduced to V2O3 on cathode and Na2O was released simultaneously. Na2CO3 was formed due to the reaction between Na2O and CO2. The production of C was ascribed to the electro-reduction of CO32-. VC was produced due to the reaction between C and V2O3.

关键词Molten Salt Electrolysis V2o3 Navo3 Molten Nacl
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1007/s11595-017-1705-8
收录类别SCI
语种英语
关键词[WOS]Alkaline-solutions ; Molten-salt ; Vanadium ; Carbon ; Melt ; Electrolysis ; Aluminum ; Behavior ; System ; Media
WOS研究方向Materials Science
WOS类目Materials Science, Multidisciplinary
项目资助者National Basic Research Program of China (973 Program)(2013CB632606) ; National Natural Science Foundation of China(51474200 ; Youth Innovation Promotion Association, CAS(2015036) ; 51422405)
WOS记录号WOS:000412950000006
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23281
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
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Weng Wei,Wang Mingyong,Gong Xuzhong,et al. Electrochemical Preparation of V2O3 from NaVO3 and Its Reduction Mechanism[J]. JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION,2017,32(5):1019-1024.
APA Weng Wei,Wang Mingyong,Gong Xuzhong,Wang Zhi,Wang Dong,&Guo Zhancheng.(2017).Electrochemical Preparation of V2O3 from NaVO3 and Its Reduction Mechanism.JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION,32(5),1019-1024.
MLA Weng Wei,et al."Electrochemical Preparation of V2O3 from NaVO3 and Its Reduction Mechanism".JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION 32.5(2017):1019-1024.
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