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

    514 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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