Spirobiindane-Based Poly(arylene ether sulfone) Ionomers for Alkaline Anion Exchange Membrane Fuel Cells

Jieun Choi, Jue Hyuk Jang, Ji Eon Chae, Hee Young Park, So Young Lee, Jong Hyun Jang, Jin Young Kim, Dirk Henkensmeier, Sung Jong Yoo, Kwan Young Lee, Yung Eun Sung, Hyoung Juhn Kim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

In this study, spirobiindane-based poly(arylene ether sulfone)s with quaternary ammonium-functionalized side chains were synthesized as alkaline anion exchange membrane fuel cell (AEMFC) electrode binding materials. A series of novel AEMFC electrode ionomers with different main-chain structures were prepared. Three-dimensional spirobiindane structures were introduced to improve the gas permeability of the binding material. The ionomers were characterized by NMR and thermogravimetric analysis. Single-cell performance tests using the ionomers were also carried out. The ionomer sample with a spirobiindane unit in the polymer backbone and quaternary ammonium-functionalized hexyloxy side chain showed good potential for AEMFC applications. A single-cell using this ionomer as a binder exhibited a peak power density of 140 mW/cm2. The modification of main-chain is considered to be a suitable approach for the synthesis of AEMFC electrode ionomers. [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)275-281
Number of pages7
JournalMacromolecular Research
Volume28
Issue number3
DOIs
Publication statusPublished - 2020 Mar 1

Keywords

  • alkaline anion exchange membrane fuel cell
  • binder
  • ionomer
  • poly(arylene ether sulfone)
  • spirobiindane unit

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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