Long-spacer-chain imidazolium functionalized poly(ether ether ketone) as hydroxide exchange membrane for fuel cell
发布时间：2019-03-13
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- 论文类型：
- 期刊论文
- 发表时间：
- 2016-09-07
- 发表刊物：
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
- 收录刊物：
- Scopus、EI、SCIE
- 文献类型：
- J
- 卷号：
- 41
- 期号：
- 33
- 页面范围：
- 14982-14990
- ISSN号：
- 0360-3199
- 关键字：
- Anion exchange membrane; Fuel cell; Imidazolium; poly(ether ether ketone)
- 摘要：
- An imidazolium-functionalized poly(ether ether ketone) containing a long spacer chain between imidazolium group and polymer main-chain (PEEK-AeImBr) was synthesized by the reaction of chloromethylated PEEK and self-synthesized 1-Aminoethyl-2,3-dimethylimidazolium bromide. H-1 NMR spectra confirmed the successful synthesis of PEEK-AeImBr. The corresponding PEEK-AeImOH HEM was prepared by casting the PEEK-AeImBr solution and subsequent ion-exchange process. Ion exchange capacity (IEC) of PEEK-AeImOH membranes ranges from 1.50 to 2.07 mmol g(-1) with the degree of chloromethylation from 58% to 92%. Hydroxide conductivity of PEEK-AeImOH membranes increases with increasing IEC. PEEK-AeImOH membrane with IEC of 2.07 mmol g(-1) has the highest conductivity of 48 mS cm(-1). The spacer-modified PEEK-AeImOH membrane maintained good alkali stability at 60 degrees C. The H-2/O-2 single cell with the PEEK-AeImOH membrane exhibits high open circuit voltage of 1.02 V and peak power density of 120 mW cm(-2) at room temperature. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
- 第一作者
- Yan, Xiaoming
- 合写作者
- He, Gaohong,Gao, Li,Zheng, Wenji,Ruan, Xuehua,Zhang, Caimian,Wu, Xuemei
- 通讯作者
- He, GH (reprint author), Dalian Univ Technol, Res & Dev Ctr Membrane Sci & Technol, Sch Chem Engn, Panjin 116024, LN, Peoples R China.