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【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感谢参与，应助指数 +1
sp2286770: 金币+50, ★★★★★最佳答案 2017-09-25 13:10:27
心静_依然: LS-EPI+1, 感谢应助 2017-09-26 17:18:01
第 1 条，共 1 条
标题: Pre-Oxidized Acrylic Fiber Reinforced Ferric Sulfophenyl Phosphate-Doped Polybenzimidazole-Based High-Temperature Proton Exchange Membrane
作者: Sun, P (Sun, Peng); Li, ZF (Li, Zhongfang); Jin, L (Jin, Lei); Yang, YG (Yang, Yangong); Wang, SW (Wang, Suwen); Yin, XY (Yin, Xiaoyan); Wang, YX (Wang, Yuxin)
来源出版物: MACROMOLECULAR MATERIALS AND ENGINEERING 卷: 302 期: 7 文献号: 1600468 DOI: 10.1002/mame.201600468 出版年: JUL 2017
摘要: Pre-oxidized acrylic fiber (POAF) and ferric sulfophenyl phosphate (FeSPP) are incorporated into polybenzimidazole (PBI) membrane for the first time to prepare high-temperature proton exchange membranes (PEMs). The strong hydrogen bonds formed between PBI/POAF and FeSPP lead to good dispersion of POAF and FeSPP, facilitate the construction of proton channels, and enhance the dimensional and mechanical stability of the membranes. PBI/FeSPP (30 wt%) shows good proton conductivity (5.43 x 10(-2) and 4.13 x 10(-2) S cm(-1) at 180 degrees C at 50% and 0 relative humidity (RH), respectively) and improved dimensional and mechanical stability compared with pristine PBI. By incorporating 5 wt% POAF into PBI/FeSPP (30 wt%), the swelling ratios are halved and the mechanical strength is enhanced by almost 30% while the proton conductivity is slightly affected (3.84 x 10(-2) and 2.97 x 10(-2) S cm(-1) at 180 degrees C at 50% and 0 RH for PBI/FeSPP (30 wt%)/POAF (5 wt%), respectively). This work offers a new route in the preparation of high-temperature PEMs with enhanced properties.
入藏号: WOS:000405636200013
ISSN: 1438-7492
eISSN: 1439-2054 |
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