Versatile nanoporous bimetallic phosphides towards electrochemical water splitting

Yongwen Tan, Hao Wang, Pan Liu, Yuhao Shen, Chun Cheng, Akihiko Hirata, Takeshi Fujita, Zheng Tang, Mingwei Chen*

*この研究の対応する著者

研究成果: Article査読

387 被引用数 (Scopus)

抄録

Alloying is an important approach to improving catalytic activities and realizing new functions of heterogeneous catalysts, which has extensively been employed in fabricating noble metal based bimetallic catalysts. However, it is technically unviable in the synthesis of alloyed transition metal compounds, which are emerging as important catalysts for water splitting, in a controllable manner using conventional wet chemical methods. Here we report nanoporous bimetallic (Co1-xFex)2P phosphides with controllable compositions and tuneable porosity, which are fabricated by the combination of metallurgical alloy design and electrochemical etching. By tailoring the Co/Fe ratios and nanoporosity, the bimetallic phosphides exhibit versatile catalytic activities towards HER and OER in acidic and basic electrolytes. As both the cathode and the anode of an electrolyser, nanoporous (Co0.52Fe0.48)2P shows an outstanding performance in water electrolysis, comparable to the commercial electrolyser with paired Pt/C and IrO2 catalysts.

本文言語English
ページ(範囲)2257-2261
ページ数5
ジャーナルEnergy and Environmental Science
9
7
DOI
出版ステータスPublished - 2016 7
外部発表はい

ASJC Scopus subject areas

  • 環境化学
  • 再生可能エネルギー、持続可能性、環境
  • 原子力エネルギーおよび原子力工学
  • 汚染

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