@inproceedings{7e87d8b033754f17b1105a78f963857b,
title = "Factors impacting chemical degradation of perfluorinated sulfonic acid ionomers",
abstract = "Several factors impacting chemical degradation of perfluorinated sulfonic acid ionomers are identified in this paper. Based on the results from this study, gas crossover is the fundamental mechanism that leads to PFSA membrane chemical degradation. H2, O2 and a catalytic surface are required to generate H2O2/radicals. The effect of electrochemically generated Pt oxide/hydroxide, Vulcan{\textregistered} XC-72R, Pt/C is clarified. Two major degradation pathways, H2O2 Pathway and Direct Radical Generation Pathway, are proposed. The impact of iron contamination and H2O2 concentration is also discussed. It was shown that a H2O2 flow cell is a better approach for membrane/MEA evaluation than conventional beaker based Fenton's tests (i.e., batch-like tests). copyright The Electrochemical Society.",
author = "H. Liu and Gasteiger, {H. A.} and Laconti, {A. B.} and J. Zhang",
year = "2006",
doi = "10.1149/1.2214561",
language = "English",
isbn = "1566774918",
series = "ECS Transactions",
publisher = "Electrochemical Society Inc.",
number = "8",
pages = "283--293",
booktitle = "Durability and Reliability of Low-Temperature Fuel Cells Systems",
edition = "8",
note = "Symposium on Durability and Reliability of Low-Temperature Fuel Cells Systems - 208th Meeting of the Electrochemical Society ; Conference date: 16-10-2005 Through 21-10-2005",
}