Highly durable Pd metal catalysts for the oxygen reduction reaction in fuel cells; Coverage of Pd metal with silica

Sakae Takenaka, Naoto Susuki, Hiroaki Miyamoto, Eishi Tanabe, Hideki Matsune, Masahiro Kishida

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Pd cathode catalysts for polymer electrolyte fuel cells have been covered with silica layers a few nanometres thick. The silica-coated Pd catalysts showed high activity and excellent durability for the oxygen reduction under the severe cathode conditions of PEFCs, while Pd catalysts without silica-coating were seriously deactivated under the same conditions. The coverage of Pd metal with silica prevents the diffusion of Pd species out of the silica layers.

Original languageEnglish
Pages (from-to)8950-8952
Number of pages3
JournalChemical Communications
Volume46
Issue number47
DOIs
Publication statusPublished - Dec 21 2010

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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