Strengthening Phosphoric Acid Doped Polybenzimidazole Membranes with Siloxane Networks for Using as High Temperature Proton Exchange Membranes

DOI Web Site Web Site 被引用文献1件
  • Jingshuai Yang
    Department of Chemistry College of Sciences Northeastern University Shenyang 110819 China
  • Liping Gao
    Department of Chemistry College of Sciences Northeastern University Shenyang 110819 China
  • Jin Wang
    Department of Chemistry College of Sciences Northeastern University Shenyang 110819 China
  • Yixin Xu
    Department of Chemistry College of Sciences Northeastern University Shenyang 110819 China
  • Chao Liu
    Department of Chemistry College of Sciences Northeastern University Shenyang 110819 China
  • Ronghuan He
    Department of Chemistry College of Sciences Northeastern University Shenyang 110819 China

書誌事項

公開日
2017-04-07
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/macp.201700009
公開者
Wiley

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説明

<jats:p>Two silane compounds, i.e., ((chloromethyl)phenylethyl)trimethoxysilane (Ph‐Si) and 3‐chloropropyltriethoxysilane (Pr‐Si), are employed as covalent crosslinkers to fabricate high temperature proton exchange membranes based on polybenzimidazole (PBI) in order to better understand the correlation between the structure and the property of the crosslinked membranes. All the crosslinked PBI membranes display longer morphology durability over the neat PBI membrane toward the radical oxidation. The crosslinked membranes with the crosslinker containing a rigid group of phenylene (PBI‐Ph) show superior acid doping level, high conductivity, and excellent mechanical strength simultaneously, comparing to those with the crosslinker having a flexible alkyl chain (PBI‐Pr) and the pristine PBI based membrane. The technical feasibility for using as high temperature proton exchange membranes is demonstrated by the acid doped crosslinked PBI‐Ph membranes via fuel cell tests. <jats:boxed-text content-type="graphic" position="anchor"><jats:graphic xmlns:xlink="http://www.w3.org/1999/xlink" mimetype="image/png" position="anchor" specific-use="enlarged-web-image" xlink:href="graphic/macp201700009-abs-0001-m.png"><jats:alt-text>image</jats:alt-text></jats:graphic></jats:boxed-text></jats:p>

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