Novel Approach to Recycling Water and Reducing Water Loss in DMFCs

E. Peled, A. Blum, A. Aharon, M. Philosoph, Y. Lavi

Research output: Contribution to journalArticlepeer-review

66 Scopus citations


Water loss and water recycling in direct methanol fuel cells (DMFCs) is a major issue. As a result of electro-osmotic drag, water accumulates at the cathode and hydraulic pressure builds up. The rate of water permeation under hydraulic pressure was measured for several nanoporous proton-conducting membranes (NP-PCMs) and for Nafion 117. Water-permeation rate in NP-PCM is up to 18 times that in Nafion 117. With the use of a liquid-water barrier layer, water loss can be minimized and this can lead to water-neutral operation conditions. In such a case the weight, volume, and complexity of the DMFC system would be reduced.

Original languageEnglish
Pages (from-to)A268-A271
JournalElectrochemical and Solid-State Letters
Issue number12
StatePublished - Dec 2003
Externally publishedYes


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