PtRuP nanoparticles supported on mesoporous carbon thin film as highly active anode materials for direct methanol fuel cell

Meng Liang Lin, Man Yin Lo, Chung Yuan Mou

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

PtRu nanocatalyst supported on mesoporous carbon thin film (TFC) with incorporation of the non-metallic phosphorus is explored as an anodic catalytic material for direct methanol fuel cell (DMFC). The catalyst 20 wt.% PtRuP 0.1/TFC gives a very high current density in the electrochemical oxidation of methanol, which is much enhanced than that of the PtRu/TFC without P loading and two times higher compared to a commercial PtRu/XC-72 catalyst. XPS and EXAFS analysis of the catalysts show that phosphorus helps to reduce the size of PtRu nanoalloy by acting as a surface protecting agent to the nanoparticles and it does not alter the electronic structure of PtRu. The PtRuP nanocatalyst with a particle size of 3 nm was found to have the best reactivity and catalytic stability.

Original languageEnglish
Pages (from-to)109-115
Number of pages7
JournalCatalysis Today
Volume160
Issue number1
DOIs
Publication statusPublished - Feb 2 2011
Externally publishedYes

Keywords

  • Direct methanol fuel cell
  • EXAFS
  • Mesoporous carbon
  • Phosphorus
  • PtRu alloy
  • Size effect

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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