PEFC electrocatalysts using Sn-based materials dispersed on mesoporous carbon

Ryosuke Nishiizumi, Yusuke Inoue, Masahiro Yasutake, Zhiyun Noda, Stephen Matthew Lyth, Masamichi Nishihara, Junko Matsuda, Akari Hayashi, Kazunari Sasaki

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

Abstract

Significant improvement in the durability of polymer electrolyte fuel cell (PEFC) electrocatalysts is essential for heavy-duty applications. Carbon-based supports suffer from carbon corrosion during start-stop potential cycles, leading to Pt detachment. Load cycles can also cause degradation mainly associated with Pt dissolution/re-deposition. Here, nanocomposite electrocatalysts with Pt and SnO2 decorated on mesoporous carbon (MC) are prepared for improvement of start-stop and load-cycle durability. These nanocomposite electrocatalysts are found to be deposited within the mesopores of the MC support. It is demonstrated by half-cell tests that such electrocatalysts exhibit a high durability for potential changes simulating start-stop and load-cycles.

Original languageEnglish
Title of host publicationECS Transactions
Place of PublicationPennington, NJ
Pages379-387
Number of pages9
Edition9
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 31 Oct 2022
Event242nd ECS Meeting - Hilton Atlanta, Atlanta, United States
Duration: 9 Oct 202213 Oct 2022
https://www.electrochem.org/242/

Publication series

NameECS Transactions
Number9
Volume109
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference242nd ECS Meeting
Country/TerritoryUnited States
CityAtlanta
Period9/10/2213/10/22
Internet address

Keywords

  • polymer electrolyte fuel cell
  • electocatalysts
  • carbon corrosion

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