Water transport through Nafion 112 membrane in DMFCs

G. Q. Lu, F. Q. Liu, Chao Yang Wang

Research output: Contribution to journalArticle

111 Scopus citations

Abstract

Water management has emerged as a significant challenge in portable direct methanol fuel cells, DMFCs. Excessive water crossover through the membrane causes water loss in the anode and flooding in the cathode. We report a novel DMFC design based on Nation 112 and a cathode gas-diffusion layer coated with a microporous layer. This DMFC operated with ambient air yielded a stable power density of 56 mW/cm2 at 60°C, while the net water transport coefficient was only 0.64 compared to a typical value of 3 for Nafion 117 membranes. In addition, the fuel efficiency was about 74-92%.

Original languageEnglish (US)
Pages (from-to)A1-A4
JournalElectrochemical and Solid-State Letters
Volume8
Issue number1
DOIs
StatePublished - Jan 31 2005

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

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