Cu(OH)2 @CoCO3 (OH)2 ·nH2 O Core-Shell Heterostructure Nanowire Array: An Efficient 3D Anodic Catalyst for Oxygen Evolution and Methanol Electrooxidation

Lisi Xie; Chun Tang; Kunyang Wang; Gu Du; Abdullah M Asiri; Xuping Sun

doi:10.1002/smll.201602755

Cu(OH)₂ @CoCO₃ (OH)₂ ·nH₂ O Core-Shell Heterostructure Nanowire Array: An Efficient 3D Anodic Catalyst for Oxygen Evolution and Methanol Electrooxidation

Small. 2017 Feb;13(7). doi: 10.1002/smll.201602755. Epub 2016 Dec 7.

Authors

Lisi Xie¹, Chun Tang¹, Kunyang Wang², Gu Du², Abdullah M Asiri³, Xuping Sun¹

Affiliations

¹ Chemical Synthesis and Pollution Control, Key Laboratory of Sichuan Province, School of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637002, Sichuan, China.
² Chengdu Institute of Geology and Mineral Resources, Chengdu, 610081, Sichuan, China.
³ Chemistry Department and Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.

PMID: 27925379
DOI: 10.1002/smll.201602755

Abstract

A Cu(OH)₂ @CoCO₃ (OH)₂ ·nH₂ O (CCHH) core-shell heterostructure nanowire array acts as robust 3D oxygen evolution reaction catalyst. It needs an overpotential of 270 mV to drive 50 mA cm^-2 in 1.0 m KOH, outperforming CCHH nanowire arrays on copper foam and most reported Co-based oxygen evolution reaction catalysts in alkaline media. It is also efficient for methanol electrooxidation.

Keywords: Cu(OH)2@CoCO3(OH)2·nH2O; anodic catalyst; heterostructure nanowire arrays; methanol electrooxidation; oxygen evolution reaction.