SPPEK/WO3 hybrid membrane fabricated via hydrothermal method for vanadium redox flow battery

被引：66
作者：
Wang, Nanfang [1 ,2 ]
Peng, Sui [1 ]
Wang, Hongmei [1 ]
Li, Yanhua [1 ]
Liu, Suqin [1 ]
Liu, Younian [1 ]
机构：
[1] Cent S Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Resources Chem Nonferrous Met, Changsha 410083, Peoples R China
[2] Hunan Inst Engn, Sch Chem & Chem Engn, Xiangtan 411104, Peoples R China
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2012年 / 17卷
基金：
中国国家自然科学基金;
关键词：
Vanadium redox battery; Hybrid membrane; Hydrothermal method; Vanadium ion permeability; MODIFIED NAFION MEMBRANE; FUEL-CELLS;
D O I：
10.1016/j.elecom.2012.01.012
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A SPPEK/WO3 hybrid membrane was fabricated by a hydrothermal method to improve its performance in vanadium redox flow battery (VRB). The morphology of the hybrid membrane revealed that WO3 phase was well formed in the SPPEK matrix. At 50 mA/cm(2), the VRB single cell with SPPEK/WO3 membrane presented a lower self-discharge rate (218 h above 0.8 V) and a higher coulombic and energy efficiency (98.07% and 78.06%), ascribed to its higher ionic selectivity (5.81 x 10(4) min S/cm(3)), compared with Nafion system. The hybrid membrane exhibited a stable performance during 100 cycles. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：30 / 33
页数：4
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