An all-aromatic polypyridine: Monomer and polymer synthesis; film formation and crosslinking; a candidate fuel cell membrane

Doetze J. Sikkema, Ron M. Versteegen, Maarten J. Pouderoijen, Henk M. Janssen, Ben Boere, Ferry Brands, Ger Jan Kemperman, Jos B.M. Rewinkel, Menno Koeman

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

2,6-di (3-pyridyl)phenol and the title polymer are synthesized at 1 kg scale. Polymer is processed and crosslinked without the introduction of non-aromatic moieties after shaping into membranes. Attractive proton conduction, at high temperature (140–180 °C: 300 mS cm−1) and at room temperature (60 mS cm−1) are recorded in the dry state (higher numbers at modest humidity) and excellent retention of properties after challenge by humidity (in contrast with state-of-the-art PBI membranes). Functional fuel cells are made and tested. In prolonged use the membrane is plasticized and this seems attributable to curing reversal at the hydrogen electrode. For high temperature fuel cell use, another curing scheme (again without the introduction of aliphatic character) must be found.

Original languageEnglish
Pages (from-to)234-239
Number of pages6
JournalJournal of Power Sources
Volume379
DOIs
Publication statusPublished - 1 Mar 2018

Keywords

  • 2,6-di(3-pyridyl)phenol
  • High temperature PEMFC
  • Hydrogenolysis
  • Oxidative polymerization
  • Poly[(2,6-di-3-pyridyl)-1,4-phenylene oxide]
  • Stability

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