Influence of Solvent on Polymer Prequaternization toward Anion-Conductive Membrane Fabrication for All-Vanadium Flow Battery
文献类型：期刊论文
| 作者 | Zhang, Fengxiang; Zhang, Huamin; Qu, Chao |
| 刊名 | journal of physical chemistry b
 |
| 出版日期 | 2012-08-02 |
| 卷号 | 116期号:30页码:9016-9022 |
| 产权排序 | 1,1 |
| 通讯作者 | 张凤祥 ; 张华民 |
| 英文摘要 | triethylamine- (tea-) enabled prequaternization of a polymer for nonalkaline anion-exchange membrane (aem) fabrication is more facile and environmentally benign than the conventional trimethylamine-based postquaternization route. it is also more compatible with forming a microphase-separated membrane morphology that can facilitate ion transport. however, most studies of tea-quaternized aems have reported unsatisfactory conductivities, and no examples of their application in all-vanadium flow batteries (vfbs) have been reported. in this work, we aim to address this issue and demonstrate that, by employing a favorable solvent, polysulfone can be prequaternized to a high level with tea and further fabricated into an aem showing good conductivity (18.2 ms cm(-1) at room temperature) and impressive vfb performance (coulombic efficiency above 98% and energy efficiency above 80% at 80 ma cm(-2)). in contrast, when an unfavorable solvent is used, membrane quaternization does not occur significantly. this contrast is shown to result from the absence or presence of solvent-tea competition during quaternization, which is related to the the electron-donating or -withdrawing properties of the solvents used. our study adds new understanding to the quaternization chemistry of aems and also represents the first example, to our knowledge, of a tea-quaternized aem yielding high vfb efficiencies. |
| WOS标题词 | science & technology ; physical sciences |
| 学科主题 | 物理化学 |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | exchange membrane ; fuel-cells ; casting solvent ; ether ketone) ; amination ; dynamics ; ptfe |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000306989800031 |
| 公开日期 | 2013-10-11 |
| 源URL | [http://159.226.238.44/handle/321008/117960]  |
| 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 | Chinese Acad Sci, Dalian Inst Chem Phys, Ctr Energy Storage Batteries & Technol, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Fengxiang,Zhang, Huamin,Qu, Chao. Influence of Solvent on Polymer Prequaternization toward Anion-Conductive Membrane Fabrication for All-Vanadium Flow Battery[J]. journal of physical chemistry b,2012,116(30):9016-9022. |
| APA | Zhang, Fengxiang,Zhang, Huamin,&Qu, Chao.(2012).Influence of Solvent on Polymer Prequaternization toward Anion-Conductive Membrane Fabrication for All-Vanadium Flow Battery.journal of physical chemistry b,116(30),9016-9022. |
| MLA | Zhang, Fengxiang,et al."Influence of Solvent on Polymer Prequaternization toward Anion-Conductive Membrane Fabrication for All-Vanadium Flow Battery".journal of physical chemistry b 116.30(2012):9016-9022. |
入库方式： OAI收割
来源：大连化学物理研究所
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