Combinatorial investigation of Pt-Ru-M as anode electrocatalyst for direct methanol fuel cell

Young Hwan Chu, Sang Won Ahn, Do Young Kim, Hyun Jong Kim, Yong Gun Shul, Haksoo Han

Research output: Contribution to journalConference article

20 Citations (Scopus)

Abstract

The addition of Au/TiO2 and zeolites as active components to PtRu/C electrode in DMFC was investigated by using combinatorial high-throughput-screening test. Addition of Au/TiO2 to PtRu/C electrode, especially in the ratio of PtRu/C: Au/TiO2 9:1, 8:2, 7:3, were effective to improve the performance of direct methanol fuel cell. The electrochemical properties of the prepared electrodes were compared using cyclic voltammetry, impedance spectroscopy and a single cell performance test of a direct methanol fuel cell (DMFC). The adsorbed CO on Pt might be easily oxidized on the surface of Au/TiO2 by interaction between PtRu/C and Au/TiO2. The addition of the solid acid proton conducting materials (ZSM-5) on PtRu/C anode leads to the high temperature operation. The cell performance was maintained over the cell temperature 120 °C (maximum current density was 200 mA/cm2 at 160 °C) by the addition of ZSM-5 as proton conducting materials.

Original languageEnglish
Pages (from-to)176-181
Number of pages6
JournalCatalysis Today
Volume111
Issue number3-4
DOIs
Publication statusPublished - 2006 Feb 15

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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