CORC  > 北京大学  > 化学与分子工程学院
Designing a new process to prepare amphoteric ion exchange membrane with well-distributed grafted chains for vanadium redox flow battery
Ma, Jun ; Wang, Yu ; Peng, Jing ; Qiu, Jingyi ; Xu, Ling ; Li, Jiuqiang ; Zhai, Maolin
刊名膜科学杂志
2012
关键词Radiation grafting Solution phase inversion method Amphoteric ion exchange membrane DMAEMA Vanadium redox flow battery WEIGHT POLYETHYLENE POWDER FUEL-CELLS POLY(VINYLIDENE FLUORIDE) COMPOSITE MEMBRANE STYRENE FILM COPOLYMERIZATION FLUOROPOLYMERS METHACRYLATE SULFONATION
DOI10.1016/j.memsci.2012.04.034
英文摘要A combination of radiation grafting technique and solution phase inversion method has been successfully utilized to prepare amphoteric ion exchange membranes (AIEMs) from poly(vinylidene fluoride) (PVDF) powder. First, styrene (St) and dimethylaminoethyl methacrylate (DMAEMA) were grafted into PVDF powder via radiation-induced graft copolymerization. Subsequently, the grafted powder was transferred into film by casting method. Finally the AIEM was obtained by sulfonation and protonation of the grafted film. Micro-FTIR, XPS and TG analyses testified that the grafting and sulfonation of St and DMAEMA units in poly(St-co-DMAEMA) grafts had been carried out as designed. SEM-EDX image of the AIEM indicates the well distribution of the grafted chains across the AIEM. The physicochemical properties of the resulting AIEMs and the conventional AIEMs based PVDF film grafting were comparatively investigated. The AIEMs obtained by this novel process were found to have superior conductivity compared with the AIEMs based PVDF film grafting. Open circuit voltage measurements showed that the vanadium redox flow battery (VRFB) assembled with this new AIEM maintained the value above 1.3 V after a period of 30 h, which was much longer than that with the Nafion 117 membrane, suggesting this approach is effective for imparting preferable structure-properties to the membrane for VRFB. (c) 2012 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000307810600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Chemical; Polymer Science; SCI(E); 21; ARTICLE; 1-8; 419
语种英语
内容类型期刊论文
源URL[http://ir.pku.edu.cn/handle/20.500.11897/229345]  
专题化学与分子工程学院
推荐引用方式
GB/T 7714
Ma, Jun,Wang, Yu,Peng, Jing,et al. Designing a new process to prepare amphoteric ion exchange membrane with well-distributed grafted chains for vanadium redox flow battery[J]. 膜科学杂志,2012.
APA Ma, Jun.,Wang, Yu.,Peng, Jing.,Qiu, Jingyi.,Xu, Ling.,...&Zhai, Maolin.(2012).Designing a new process to prepare amphoteric ion exchange membrane with well-distributed grafted chains for vanadium redox flow battery.膜科学杂志.
MLA Ma, Jun,et al."Designing a new process to prepare amphoteric ion exchange membrane with well-distributed grafted chains for vanadium redox flow battery".膜科学杂志 (2012).
个性服务
查看访问统计
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。


©版权所有 ©2017 CSpace - Powered by CSpace