期刊
JOURNAL OF ENERGY CHEMISTRY
卷 27, 期 4, 页码 1189-1197出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jechem.2017.09.017
关键词
Vanadium redox flow battery; ASIPN; Cross-linking; Amphoteric membrane
资金
- National Key Research and Development Program of China [2016YFB0101203]
- China MOST (Ministry of Science and Technology) Innovation Team in Key Area [2016RA4053]
- National Natural Science Foundation of China [21276252]
- Natural Science Foundation of Liaoning Province [2015020630]
- State Key Laboratory of Fine Chemicals (Panjin) [JH2014009]
For improvement of vanadium redox flow battery (VRB) performance, novel amphoteric semiinterpenetrating membranes (ASIPN) were prepared using poly(ether ether ketone) (PEEK) and polysulfone (PSf), the former bearing sulfonic groups and the latter imidazolium. These two groups form ionic crosslinks between PEEK and PSf; meanwhile, covalent cross links were built between PSf chains with addition of N-(3-aminopropyl)-imidazole. The amphoteric nature of the membrane allows facile proton and anion transport; the IPN structure and the presence of imidazolium cation effectively suppress vanadium ion crossover through the membrane. Therefore, the ASIPN based VRBs show higher Coulombic efficiency and energy efficiency than that assembled with pristine SPEEK and Nafion 212 membranes. Our work demonstrates that the ASIPN membranes are promising for VRB applications. (C) 2017 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据