Volume 56, Issue 17 pp. 4858-4861
Communication

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

Pingwei Cai

Pingwei Cai

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

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

These authors contributed equally to this work.

Search for more papers by this author
Dr. Junheng Huang

Dr. Junheng Huang

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

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

These authors contributed equally to this work.

Search for more papers by this author
Dr. Junxiang Chen

Dr. Junxiang Chen

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

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

Search for more papers by this author
Prof. Zhenhai Wen

Corresponding Author

Prof. Zhenhai Wen

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

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

Search for more papers by this author
First published: 27 March 2017
Citations: 476

Graphical Abstract

Oxygen-containing amorphous cobalt sulfide porous nanocubes with Co−S dangling bands, a distorted CoS4.6O0.6 octahedral structure, and incorporated oxygen in the CoSx have been prepared. The material shows outstanding electrocatalytic activity for water oxidation in alkaline and neutral electrolytes. vac=vacancy; Co blue, S yellow, O red, H white.

Abstract

A novel OER electrocatalyst, namely oxygen-incorporated amorphous cobalt sulfide porous nanocubes (A-CoS4.6O0.6 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 CoS4.6O0.6 octahedron structure and the oxygen doping, contribute synergistically to the outstanding electrocatalytic activity.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.