Oxygen-Containing Amorphous Cobalt Sulfide Porous Nanocubes as High-Activity Electrocatalysts for the Oxygen Evolution Reaction in an Alkaline/Neutral Medium

Pingwei Cai; Junheng Huang; Junxiang Chen; Zhenhai Wen

doi:10.1002/anie.201701280

Oxygen-Containing Amorphous Cobalt Sulfide Porous Nanocubes as High-Activity Electrocatalysts for the Oxygen Evolution Reaction in an Alkaline/Neutral Medium

Angew Chem Int Ed Engl. 2017 Apr 18;56(17):4858-4861. doi: 10.1002/anie.201701280. Epub 2017 Mar 27.

Authors

Pingwei Cai^{1

2}, Junheng Huang^{1

2}, Junxiang Chen^{1

2}, Zhenhai Wen^{1

2}

Affiliations

¹ CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P.R. China.
² Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P.R. China.

PMID: 28345283
DOI: 10.1002/anie.201701280

Abstract

A novel OER electrocatalyst, namely oxygen-incorporated amorphous cobalt sulfide porous nanocubes (A-CoS_4.6 O_0.6 PNCs), show advantages over the benchmark RuO₂ catalyst in alkaline/neutral medium. Experiments combining with calculation demonstrate that the desirable O* adsorption energy, associated with the distorted CoS_4.6 O_0.6 octahedron structure and the oxygen doping, contribute synergistically to the outstanding electrocatalytic activity.

Keywords: cobalt sulfide; electrocatalysis; oxygen incorporation; porous nanocubes; water oxidation.

Publication types

Research Support, Non-U.S. Gov't