Promotion of ceria-modified Pt-Au/C cathode catalysts for oxygen reduction reaction by H2-induced surface segregation

Chen Wei Liu, Yu Chen Wei, Kuan Wen Wang

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

The ORR activity of Ce-modified Pt50Au50/C alloy catalysts, compared to commercial Pt/C, can be promoted by H2 treatment at 520 K due to the surface and structural alteration by reduction of surface oxides, an increase in the surface composition of metallic Pt, and H2 induced surface Au segregation.

Original languageEnglish
Pages (from-to)2483-2485
Number of pages3
JournalChemical Communications
Volume46
Issue number14
DOIs
StatePublished - 2010

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