The ordered and disordered nano-intermetallic AuCu/C catalysts for the oxygen reduction reaction: The differences of the electrochemical performance

Hengquan Chen, Masahiko Nishijima, Guangjin Wang, Samson Khene, Mingqiao Zhu, Xin Deng, Xingmin Zhang, Wen Wen, Yu Luo, Qinggang Hea

研究成果: Article査読

7 被引用数 (Scopus)

抄録

To figure out the different electrochemical performance of ordered and disordered nano-intermetallic catalysts and their mechanisms, we successfully synthesized AuCu/C electrocatalysts through a modified co-precipitation method and obtained their ordered and disordered structure at different temperatures. A systematic comparison between the ordered and disordered AuCu/C with the similar composition, particle size, valence state was conducted. The AuCu/C nanoparticles with better structure-ordering showed superior catalytic performance for the oxygen reduction reaction (ORR) than the disordered ones. It was also observed that the disordered AuCu/C tended to form a Cu-shell structure which was believed to be detrimental to ORR electrocatalysis.

本文言語English
ページ(範囲)F1654-F1661
ジャーナルJournal of the Electrochemical Society
164
14
DOI
出版ステータスPublished - 2017

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 再生可能エネルギー、持続可能性、環境
  • 表面、皮膜および薄膜
  • 電気化学
  • 材料化学

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