Highly conductive and stable hybrid ionic cross-linked sulfonated PEEK for fuel cell

被引：17

作者：

Han, Juanjuan ^{[1
]}

Wu, Ying ^{[2
]}

Pan, Jing ^{[3
]}

Peng, Yanqiu ^{[2
]}

Wang, Ying ^{[2
]}

Chen, Chen ^{[3
]}

Pan, Qiyun ^{[1
]}

Xie, Bo ^{[1
]}

Zhao, Nian ^{[1
]}

Wang, Yu ^{[1
]}

Lu, Juntao ^{[2
]}

Xiao, Li ^{[2
]}

Zhuang, Lin ^{[2
]}

机构：

[1] Hubei Normal Univ, Hubei Key Lab Pollutant Anal & Reuse Technol, Inst Adv Mat, Huangshi 435002, Peoples R China

[2] Wuhan Univ, Hubei Key Lab Electrochem Power Sources, Coll Chem & Mol Sci, Wuhan 430072, Hubei, Peoples R China

[3] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

来源：

ELECTROCHIMICA ACTA | 2018年 / 291卷

基金：

中国国家自然科学基金;

关键词：

Hybrid sulfonated poly(ether ether ketone); Ionic cross-linking; Microphase separation; High proton conductivity; High stability; PROTON-EXCHANGE MEMBRANE; POLY(ARYLENE ETHER KETONE); GRAPHENE OXIDE; COMPOSITE MEMBRANES; ELECTROLYTE MEMBRANES; POLYMER ELECTROLYTE; POLY(ETHER SULFONE); IONOMER MEMBRANES; HIGH-TEMPERATURE; LOW HUMIDITY;

D O I：

10.1016/j.electacta.2018.08.147

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An ideal proton exchange membrane for fuel-cell application should possess excellent dimensional stability, high ionic conductivity and inexpensiveness. Introducing cross-links into the polymer structures is a popular strategy to alleviate the tradeoff between swelling ratio and ionic conductivity of high ion exchange capacity proton exchange membranes. However, the cross-links in these membranes will block the transport of H+, resulting in unfavorable decrease of conductivity. Here we report a systematic study of acSPEEK-S-x membranes with alkyl chain attached ionic cross-links to demonstrate how the unique cross-links can improve both the conductivity and swelling behavior of the materials. Compared to the conventional SPEEK, in addition to high anti-oxidative stability, the ionic conductivity and swelling behavior of the acSPEEK-Sx samples are significantly improved. A high proton conductivity of 101.2 mS cm(-1) and a low swelling degree of 15.0% are observed in the acSPEEK-S-6 membrane at the temperature of 80 degrees C. Based on the high-performance acSPEEK-S6 sample, a peak power density of 750 mW cm(-2) is achieved at 60 degrees C, which is similar or superior to those of Nafion 112 (710 mW cm(-2)) under the same measurement conditions. (c) 2018 Elsevier Ltd. All rights reserved.

引用

页码：353 / 361

页数：9

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