In situ time-resolved XAFS of transitional states of Pt/C cathode electrocatalyst in an MEA during PEFC loading with transient voltages

Sutasinee Kityakarn, Takahiro Saida, Aya Sode, Nozomu Ishiguro, Oki Sekizawa, Tomoya Uruga, Kensaku Nagasawa, Takashi Yamamoto, Toshihiko Yokoyama, Mizuki Tada

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The transitional states of a Pt/C cathode electrocatalyst in the membrane electrode assembly of a polymer electrolyte fuel cell during loading with transient voltages were systematically analyzed by in situ time-resolved X-ray absorption fine structure with time resolution of 100 ms. The results suggest that the local coordination of the Pt cathode electrocatalyst was unaffected by the transient voltages during both rapid and gradual loading over 0-30 s.

Original languageEnglish
Pages (from-to)903-910
Number of pages8
JournalTopics in Catalysis
Volume57
Issue number10-13
DOIs
Publication statusPublished - 2014 Jun
Externally publishedYes

Keywords

  • In situ analysis
  • Polymer electrolyte fuel cell
  • Pt catalyst
  • Time-resolved XAFS
  • Transient voltage

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Fingerprint Dive into the research topics of 'In situ time-resolved XAFS of transitional states of Pt/C cathode electrocatalyst in an MEA during PEFC loading with transient voltages'. Together they form a unique fingerprint.

Cite this