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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
Source PublicationJOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
ISSN1000-2413
Volume32Issue:5Pages:1019-1024
Abstract

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.

KeywordMolten Salt Electrolysis V2o3 Navo3 Molten Nacl
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1007/s11595-017-1705-8
Indexed BySCI
Language英语
WOS KeywordAlkaline-solutions ; Molten-salt ; Vanadium ; Carbon ; Melt ; Electrolysis ; Aluminum ; Behavior ; System ; Media
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
Funding OrganizationNational Basic Research Program of China (973 Program)(2013CB632606) ; National Natural Science Foundation of China(51474200 ; Youth Innovation Promotion Association, CAS(2015036) ; 51422405)
WOS IDWOS:000412950000006
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23281
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.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
Recommended Citation
GB/T 7714
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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