Oxygen transport parameters in Nafion(R) 117 under controlled relative humidity

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1149/05801.1097ecst
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Name affiliation
  1. National Research Council of Canada. Energy, Mining and Environment
FormatText, Article
Journal titleECS Transactions
ISSN1938-6737
1938-5862
Volume58
Issue1
Pages1097–1103
Abstract
Solid state electrochemical techniques have provided insight into the effect of relative humidity on oxygen mass transport properties in Nafion® 117. Specifically, subsequent potential step coulometric measurements taken over a period of time have shown that the act of measurement affects the catalyst-membrane interface. It is postulated that the formation of product water at the interface leads to interactions with the Nafion® 117 surface and results in local domain changes. This effect has been shown to be reversible provided there is adequate rest time between measurements to allow for water diffusion from the interface.
Publication date
PublisherElectrochemical Society Inc.
LanguageEnglish
Peer reviewedYes
NPARC number23000583
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