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sp2286770至尊木虫 (职业作家)
坚忍的完美主义者
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学校评奖学金用，只需要WOS号或者IDS号，望兄弟姐妹们帮忙！ 作者: Peng Sun, Zhongfang Li, Lei Jin, Suwen Wang, Xiaoyan Yin, 文题: Pre-oxidized acrylic fiber reinforced ferric sulfophenyl phosphate-doped polybenzimidazole-based high-temperature proton exchange membrane 期刊名: International Journal of Hydrogen Energy 期刊年份: 2017 卷(期),起止页码: 第42卷第21期，14572-14582页. Doi: 10.1016/j.ijhydene.2017.04.092 数据库名称: ScienceDirect(Elsevier) |
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polymer1211
木虫之王 (知名作家)
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sp2286770: 金币+50, ★★★★★最佳答案 2017-09-25 13:10:38
心静_依然: LS-EPI+1, 感谢应助 2017-09-26 17:18:34
感谢参与，应助指数 +1
sp2286770: 金币+50, ★★★★★最佳答案 2017-09-25 13:10:38
心静_依然: LS-EPI+1, 感谢应助 2017-09-26 17:18:34
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第 1 条，共 1 条 标题: Construction of proton channels and reinforcement of physicochemical properties of oPBI/FeSPP/GF high temperature PEM via building hydrogen bonding network 作者: Sun, P (Sun, Peng); Li, ZF (Li, Zhongfang); Jin, L (Jin, Lei); Wang, SW (Wang, Suwen); Yin, XY (Yin, Xiaoyan) 来源出版物: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 卷: 42 期: 21 页: 14572-14582 DOI: 10.1016/j.ijhydene.2017.04.092 出版年: MAY 25 2017 摘要: Composite high temperature proton exchange membranes (HT-PEMs) comprising poly[4,4'(diphenyl ether)-5,5'-bibenzimidazole] (oPBI), ferric sulfophenyl phosphate (FeSPP) and glass fiber (GF) were prepared by the hot-pressing method. Doping FeSPP as a novel insoluble proton conductor not only provided good proton conductivity at high temperature but also enhanced their methanol blocking property, dimensional stability and oxidative resistance. Good dispersion, construction of proton channels and reinforcement of the physicochemical properties were achieved by building hydrogen bonding network among oPBI, FeSPP and GF. After incorporation of 3wt% GF into the oPBI/FeSPP(30wt%) composite membrane, the tensile strength was enhanced by 370% while the swelling ratio reduced to around 55%. The oxidative stability and methanol resistance were also enhanced while the proton conductivity was slightly affected. The membranes were thermally stable in the working temperature range for HT-PEM fuel cells. The proton conductivity of oPBI/FeSPP(30wt%) and oPBI/FeSPP(30wt%)/GF(3wt%) membranes reached 0.089 and 0.074 S cm(-1) at 180 degrees C and 100% relative humidity, respectively. At 180 degrees C, the proton conductivity of oPBI/FeSPP(30wt%) and oPBI/FeSPP(30wt%)/GF(3wt%) was 0.052 and 0.042 S cm(-1) at 50% RH, respectively. oPBI/FeSPP(30wt%)/GF(3wt%) exhibited good selectivity of 3.84 x 10(5) S s cm(-3) indicating good potential for applications in direct methanol fuel cells. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. 入藏号: WOS:000403514600021 ISSN: 0360-3199 eISSN: 1879-3487 |
2楼2017-09-25 13:04:10