Water transport through Nafion 112 membrane in DMFCs

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

Research output: Contribution to journalArticle

108 Citations (Scopus)

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

Fingerprint

Direct methanol fuel cells (DMFC)
cathodes
membranes
water loss
Membranes
water management
gaseous diffusion
Water
water
fuel cells
radiant flux density
crossovers
Cathodes
anodes
methyl alcohol
transport properties
Diffusion in gases
causes
air
Water management

All Science Journal Classification (ASJC) codes

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

Cite this

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Water transport through Nafion 112 membrane in DMFCs. / Lu, G. Q.; Liu, F. Q.; Wang, Chao Yang.

In: Electrochemical and Solid-State Letters, Vol. 8, No. 1, 31.01.2005, p. A1-A4.

Research output: Contribution to journalArticle

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