Janus Co/CoP Nanoparticles as Efficient Mott–Schottky Electrocatalysts for Overall Water Splitting in Wide pH Range

Zhong Hua Xue, Hui Su, Qiu Ying Yu, Bing Zhang, Hong Hui Wang, Xin Hao Li*, Jie Sheng Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

473 Scopus citations

Abstract

A controllable vacuum-diffusion method for gradual phosphidation of carbon coated metallic Co nanoparticles into Co/CoP Janus nanoparticles is reported. Janus Co/CoP nanoparticles, as typical Mott–Schottky electrocatalysts, exhibit excellent hydrogen evolution reaction and oxygen evolution reaction performance in various electrolytes across wide pH range along with high durability. The Mott–Schottky Co/CoP catalyst can work as bifunctional electrode materials for overall water splitting in wide pH range and can achieve a current density of 10 mA cm−2 in neutral electrolyte at only 1.51 V.

Original languageEnglish (US)
JournalAdvanced Energy Materials
Volume7
Issue number12
DOIs
StatePublished - Jun 21 2017

Keywords

  • heterogeneous catalysis
  • Mott–Schottky electrocatalysts
  • nanostructures
  • phosphide
  • water splitting

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • General Materials Science

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