Hydrophilic poly(vinylidene fluoride) porous membrane with well connected ion transport networks for vanadium flow battery
文献类型：期刊论文
| 作者 | Cao, Jingyu1,3; Yuan, Zhizhang1,3; Li, Xianfeng1,2; Xu, Wanxing1,3; Zhang, Huamin1,2 |
| 刊名 | journal of power sources
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 298页码:228-235 |
| 关键词 | Vanadium flow battery Poly(vinylidene fluoride) membrane Hydrophilicity modification Cross-linking and grafting |
| 英文摘要 | hydrophilic poly(vinylidene fluoride) (pvdf) porous membranes are facilely fabricated via grafting polymerization and cross-linking reaction for vanadium flow battery (vfb) application. a solvent swelling pre-treatment is specifically carried out to introduce hydrophilic groups in the pores and on the surface, where they can form well connected ion transport networks. the modification is performed through chemical cross-linking and grafting of pvp by using potassium persulfate (k2s2o8) as a radical initiator. the effect of reaction condition on membrane morphology, hydrophilicity is characterized in detail. meanwhile, the performance of modified membranes is detected in vfb single cell at a current density of 80 ma cm(-2). it is found that more pvp is immobilized on membrane surface and in the pores with prolonging reaction time. consequently, the membrane wetability and effective pore size change dramatically, resulting better hydrophilicity and higher ion selectivity. as a result, the vfbs assembled with these modified membranes show higher ce and overall better ee than unmodified ones. the optimized membrane shows ce of 94.4% and ee of 83.3%, which is comparable to commercial nafion 115. furthermore, the prepared hydrophilic pvdf membranes demonstrate excellent chemical stability through the long-term battery operation, showing great prospects in vfb applications. (c) 2015 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | electrochemistry ; energy & fuels |
| 研究领域[WOS] | electrochemistry ; energy & fuels |
| 关键词[WOS] | anion-exchange membranes ; energy-storage ; ether ketone) ; solubility parameters ; tio2 nanoparticles ; pvdf membranes ; single-step ; performance ; progress ; polymerization |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000362146800028 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/146575]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China 2.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Jingyu,Yuan, Zhizhang,Li, Xianfeng,et al. Hydrophilic poly(vinylidene fluoride) porous membrane with well connected ion transport networks for vanadium flow battery[J]. journal of power sources,2015,298:228-235. |
| APA | Cao, Jingyu,Yuan, Zhizhang,Li, Xianfeng,Xu, Wanxing,&Zhang, Huamin.(2015).Hydrophilic poly(vinylidene fluoride) porous membrane with well connected ion transport networks for vanadium flow battery.journal of power sources,298,228-235. |
| MLA | Cao, Jingyu,et al."Hydrophilic poly(vinylidene fluoride) porous membrane with well connected ion transport networks for vanadium flow battery".journal of power sources 298(2015):228-235. |
入库方式： OAI收割
来源：大连化学物理研究所
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