Characterization of transport properties in gas diffusion layers for PEMFCs

Michael J. Bluemle, Vladimir Gurau, J. Adin Mann, Thomas A. Zawodzinski, Emory S. De Castro, Yu Min Tsou

Research output: Contribution to book or proceedingConference articlepeer-review

1 Scopus citations

Abstract

Durability of proton exchange membrane fuel cells (PEMFCs) is likely to be significantly influenced by the properties of the gas diffusion layer material. An optimum humidification level and water distribution within the gas diffusion media are required to lower the ohmic resistance and prevent the appearance of hot spots in the catalyst coated membrane. In the same time such optimum humidification level and distribution must minimize reactant mass transport losses in the gas diffusion layer. For proper cell design and water management the transport properties of the gas diffusion media must be evaluated. In this paper we describe techniques for evaluation the through-plane and in-plane viscous and inertial permeability, the internal contact angle to water and the surface energy of macro and micro-porous substrates of gas diffusion layer materials.

Original languageEnglish
Title of host publicationProton Conducting Membrane Fuel Cells IV - Proceedings of the International Symposium
Pages442-450
Number of pages9
StatePublished - 2004
Event206th Meeting of The Electrochemical Society Fall 2004 - Honolulu, HI, United States
Duration: Oct 3 2006Oct 8 2006

Publication series

NameProceedings - Electrochemical Society
VolumePV 2004-21

Conference

Conference206th Meeting of The Electrochemical Society Fall 2004
Country/TerritoryUnited States
CityHonolulu, HI
Period10/3/0610/8/06

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