Tandem Effect of Two Sulfophenylene Groups in Aromatic Polymers for Fuel Cell Membranes

Lin Guo, Kenji Miyatake*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

While the structural design of sulfonated polyphenylenes for high-temperature operable fuel cell membranes has been mainly focused on the hydrophobic components, there have been few studies on the hydrophilic components. Herein, we designed a hydrophilic monomer (BSP) containing two tandemly linked sulfonated phenylenes (disulfo-biphenylene groups) and copolymerized with fluorinated terphenylene monomer for chemically/mechanically stable, highly proton conductive membranes for fuel cells. Compared with the typical hydrophilic monomer (SP) composed of a single sulfophenylene, the BSP monomer provided the resulting polymer and membrane with higher molecular weight, better mechanical stability, and combined fuel cell durability.

Original languageEnglish
JournalACS Applied Energy Materials
DOIs
Publication statusAccepted/In press - 2022

Keywords

  • durability
  • fuel cells
  • polyphenylenes
  • proton conductive polymers
  • tandem effect

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Energy Engineering and Power Technology
  • Electrochemistry
  • Electrical and Electronic Engineering
  • Materials Chemistry

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