Impact of gas partial pressure on PEMFC chemical degradation

Han Liu, Jingxin Zhang, Frank D. Coms, Wenbin Gu, Brian Litteer, Hubert A. Gasteiger

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

48 Scopus citations

Abstract

Impact of reactant gas partial pressure on membrane chemical degradation is presented in this paper. The relationship between degradation rate and p H2 / pO2 is elucidated using fluoride release rate (FRR) as the assessment criterion. The effect of pH2 / pO2 on the location of the Pt redeposition band is clarified. Experimental results and model predictions are compared. The mechanism of FRR dependency on relative humidity (i.e., relative water partial pressure) is also examined by H 2O2 flow cell study. copyright The Electrochemical Society.

Original languageEnglish
Title of host publicationProton Exchange Membrane Fuel Cells 6
PublisherElectrochemical Society Inc.
Pages493-505
Number of pages13
Edition1
ISBN (Electronic)1566775019
DOIs
StatePublished - 2006
Externally publishedYes
EventProton Exchange Membrane Fuel Cells 6 - 210th Electrochemical Society Meeting - Cancun, Mexico
Duration: 29 Oct 20063 Nov 2006

Publication series

NameECS Transactions
Number1
Volume3
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceProton Exchange Membrane Fuel Cells 6 - 210th Electrochemical Society Meeting
Country/TerritoryMexico
CityCancun
Period29/10/063/11/06

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