Hexapod PtRuCu Nanocrystalline Alloy for Highly Efficient and Stable Methanol Oxidation

Shengfeng Xue, Wentao Deng, Fang Yang, Jinlong Yang, Ibrahim Saana Amiinu, Daping He, Haolin Tang, Shichun Mu

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

A hexapod PtRuCu nanocrystalline alloy material is successfully fabricated by a facile approach based on Stranski-Krastanov growth and galvanic replacement and used as an efficient catalyst for direct methanol fuel cells (DFMCs). Because of the synergetic effect of metallic elements in the methanol oxidation, the activity and durability of the prepared PtRuCu/C catalyst is significantly enhanced. It has a mass activity of 1.35 A mgPt -1 and a specific activity of 3.92 mA cm-2, which are 3.8 and 8.2 times higher than those of Pt/C, respectively. Its mass activity only decreases 27% after 800 CV cycles compared with Pt/C (60% decline), indicating the admirable stability of the PtRuCu catalyst.

Original languageEnglish
Pages (from-to)7578-7584
Number of pages7
JournalACS Catalysis
Volume8
Issue number8
DOIs
Publication statusPublished - 3 Aug 2018

ASJC Scopus subject areas

  • Catalysis

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    Xue, S., Deng, W., Yang, F., Yang, J., Amiinu, I. S., He, D., Tang, H., & Mu, S. (2018). Hexapod PtRuCu Nanocrystalline Alloy for Highly Efficient and Stable Methanol Oxidation. ACS Catalysis, 8(8), 7578-7584. https://doi.org/10.1021/acscatal.8b00366