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学科主题: 物理化学
题名: Towards understanding the poor thermal stability of V5+ electrolyte solution in Vanadium Redox Flow Batteries
作者: Vijayakumar, M.1;  Li, Liyu1;  Graff, Gordon1;  Liu, Jun1;  Zhang, Huamin2;  Yang, Zhenguo1;  Hu, Jian Zhi2
通讯作者: ZhenguoYang
关键词: O-17 and V-51 NMR ;  Vanadium Redox Flow Battery ;  Vanadium electrolytes ;  V2O5 precipitation
刊名: JOURNAL OF POWER SOURCES
发表日期: 2011-04-01
DOI: 10.1016/j.jpowsour.2010.11.126
卷: 196, 期:7, 页:3669-3672
收录类别: SCI
文章类型: Article
部门归属: DNL17
项目归属: DNL17
产权排名: 2,5
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
摘要: Towards understanding the poor thermal stability of V5+ electrolyte solution in Vanadium Redox Flow Batteries
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: The V5+ electrolyte solution from Vanadium Redox Flow Batteries was studied by variable temperature O-17 and V-51 Nuclear Magnetic Resonance (NMR) spectroscopy and density functional theory (DFT) based computational modeling. It was found that the V5+ species exist as hydrated penta co-ordinated vanadate ion, i.e. [VO2(H2O)(3)](1+). This hydrated structure is not stable at elevated temperature and change into neutral H3VO4 molecule via a deprotonation process and subsequently leading to the observed V2O5 precipitation in Vs electrolyte solutions. (C) 2010 Elsevier B.V. All rights reserved.
关键词[WOS]: CELL ELECTROLYTE ;  PRECIPITATION ;  PERFORMANCE ;  EQUILIBRIA ;  STORAGE ;  WATER ;  VO2+
语种: 英语
WOS记录号: WOS:000289325000040
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115695
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Pacific NW Natl Lab, Richland, WA 99352 USA
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Vijayakumar, M.,Li, Liyu,Graff, Gordon,et al. Towards understanding the poor thermal stability of V5+ electrolyte solution in Vanadium Redox Flow Batteries[J]. JOURNAL OF POWER SOURCES,2011,196(7):3669-3672.
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