0.5 W/cm2 direct methanol-air fuel cell

E. Peled, V. Livshits, M. Rakhman, A. Aharon, T. Duvdevani, M. Philosoph, T. Feiglin

Research output: Contribution to journalArticlepeer-review

Abstract

We report on the properties and performance of nanoporous proton-conducting membrane-based direct methanol fuel cell DMFC operated with triflic acid. Replacement of sulfuric acid (which adsorbs on platinum) by triflic acid (which does not) and the use of a higher quality membrane led to an increase in cell power by up to 250% (up to 0.5 W/cm2 at 130°C) and to a decrease in both anodic and cathodic overvoltages. Three more factors seem to be responsible for this high power, reduction in water hydraulic pressure at the cathode, decrease in the partial vapor pressure of water at the cathode, and decrease in cell resistance.

Original languageEnglish
Article number4
Pages (from-to)A507-A510
JournalElectrochemical and Solid-State Letters
Volume7
Issue number12
DOIs
StatePublished - 2004

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