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PtRuO2/Ti anodes with a varying Pt:Ru ratio for direct methanol fuel cells

Lookup NU author(s): Fujun Zhu, Professor Wen-Feng Lin, Professor Paul Christensen, Huqui Zhang

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Abstract

PtRuO2/Ti anodes with a varying Pt:Ru ratio were prepared by thermal deposition of a PtRuO2 catalyst layer onto a Ti mesh for the direct methanol fuel cell (DMFC). The morphology and structure of the catalyst layers were analyzed by SEM, EDX, and XRD. The catalyst coating layers became porous with increase of the Ru content, and showed oxide and alloy characteristics. The relative activities of the PtRuO2/Ti electrodes were assessed and compared using half-cell tests and single DMFC experiments. The results showed that these electrodes were very active for the methanol oxidation and that the optimum Ru surface coverage was ca. 38% for a DMFC operating at 20-60 °C. © 2006 Elsevier B.V. All rights reserved.


Publication metadata

Author(s): Shao Z-G, Zhu F, Lin W-F, Christensen PA, Zhang H

Publication type: Article

Publication status: Published

Journal: Journal of Power Sources

Year: 2006

Volume: 161

Issue: 2

Pages: 813-819

ISSN (print): 0378-7753

ISSN (electronic): 1873-2755

Publisher: Elsevier SA

URL: http://dx.doi.org/10.1016/j.jpowsour.2006.06.037

DOI: 10.1016/j.jpowsour.2006.06.037


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