Modeling of catalyst layer surface coverage and volume blockage owing to liquid water in a PEFC

Partha P. Mukherjee, Chao Yang Wang

Research output: Contribution to journalConference article

10 Scopus citations

Abstract

A comprehensive pore-scale modeling framework has been developed for the catalyst layer of a polymer electrolyte fuel cell in order to study the effects of site coverage and volume blockage owing to liquid water. The catalyst layer microstructure is reconstructed using a stochastic generation method. The liquid water distribution is obtained from a two-phase lattice Boltzmann simulation and the catalytic surface coverage leading to reduced electrochemical activity is estimated from the saturation maps. The pore blockage effect due to liquid water is evaluated using a direct numerical simulation model from the reduced oxygen diffusivity owing to the resistance offered by the blocked pores. copyright The Electrochemical Society.

Original languageEnglish (US)
Pages (from-to)1085-1094
Number of pages10
JournalECS Transactions
Volume3
Issue number1
DOIs
StatePublished - Dec 1 2006
EventProton Exchange Membrane Fuel Cells 6 - 210th Electrochemical Society Meeting - Cancun, Mexico
Duration: Oct 29 2006Nov 3 2006

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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