Aligned nanoporous Pt-Cu bimetallic microwires with high catalytic activity toward methanol electrooxidation

H. J. Qiu, X. Shen, J. Q. Wang, A. Hirata, T. Fujita, Y. Wang*, M. W. Chen

*この研究の対応する著者

研究成果: Article査読

99 被引用数 (Scopus)

抄録

We report a simple approach to fabricate aligned bimetallic Pt-Cu microwires with a three-dimensional nanoporous structure, tunable composition, and high catalytic activity by dealloying a dilute Pt3Cu97 precursor. Each microwire possesses inherent ultrafine nanoporous structure with uniformly distributed Pt-Cu alloy ligaments and nanopores with a dimension of ∼2 nm. Electrochemical measurements manifest that the nanoporous Pt-Cu microwires have significantly enhanced electrocatalytic activities compared with a commercial Pt/C nanoparticulate catalyst. With evident advantages of facile preparation and enhanced catalytic performance together with low material costs, the nanoporous Pt-Cu microwires hold great promise as a high-performance catalyst for electrochemical energy conversion.

本文言語English
ページ(範囲)3779-3785
ページ数7
ジャーナルACS Catalysis
5
6
DOI
出版ステータスPublished - 2015 6月 5
外部発表はい

ASJC Scopus subject areas

  • 触媒
  • 化学 (全般)

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