High proton-conducting polymer electrolytes based on pendent poly(arylene ether ketone) with H-bond for proton exchange membranes

Liyuan Zhang, Gang Zhang, Chengji Zhao, Zhongguo Liu, Hao Jiang, Shuai Xu, Mingyu Li, Dan Xu, Hui Na

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

A novel side-chain poly(arylene ether ketone) functionalized with 1,4-butane-sultone (SQNPAEK-x, "x" refers to the number of the attaching sulfobutyl groups in one unit) were synthesized for proton exchange membrane fuel cell. SQNPAEK-x showed high proton conductivity up to 0.317 S cm-1 at 80 C and excellent dimensional stability due to the remaining hydroxyl groups. Morphological investigations revealed that SQNPAEK-x contained more uniform ionic clusters than the main-chain sulfonated poly(arylene ether ketone), which increased the proton conductivity. Other properties such as water uptake, mechanical properties were also investigated. It should be noted that SQNPAEK-1.5 possesses the best overall performance with proton conductivity (0.204 S cm-1 at 80 C) higher that Nafion 117, while the swelling ratio was equivalent (13.2% at 80 C). All the results indicate that the SQNPAEK-x membranes are promising candidates for proton exchange membrane fuel cells.

Original languageEnglish (US)
Pages (from-to)12363-12373
Number of pages11
JournalInternational Journal of Hydrogen Energy
Volume38
Issue number28
DOIs
StatePublished - 2013

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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