Investigation of a Method of Evaluating Proton Transport Resistance in PEFC Catalyst Layers

Yosuke Mizuta, Mayumi Nagayama, Kazunari Sasaki, Akari Hayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Since there is no method to directly measure proton conductivity in the catalyst layer in PEFC even though proton conduction in the catalyst layer is one of the critical factors for high performance and durability. A method to directly measure proton transport resistance in the catalyst layers was investigated by sandwiching a sample layer by two Nafion®membranes to block electron transfer, and two gas diffusion electrodes to reduce gas diffusion resistance, in this study. Direct current was applied to the system in the hydrogen atmosphere, and measurements for proton transport resistance were performed in various sample layers. As a result, proton transport resistance in sample layers was successfully evaluated, and such measurements lead to improvement of current-voltage performance of PEFC.

Original languageEnglish
Title of host publicationECS Transactions
PublisherInstitute of Physics
Number of pages9
ISBN (Electronic)9781607685395
Publication statusPublished - 2022
Event242nd ECS Meeting - Atlanta, United States
Duration: Oct 9 2022Oct 13 2022

Publication series

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


Conference242nd ECS Meeting
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • General Engineering


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