Issue 2, 2016

Assembled 3D electrocatalysts for efficient hydrogen evolution: WSe2 layers anchored on graphene sheets

Abstract

A new 3D composite electrocatalytic material is produced by growing WSe2 thin layers vertically on 2D reduced graphene oxide nanosheets. The material has improved electrode/electrolyte interactions and efficient catalytic properties due to the rich defects, a 3D hybrid configuration, and the direct integration of WSe2 onto the graphene sheets, which can significantly prevent the aggregation of WSe2 and promote the conductivity of the material. As demonstrated, the as-harvested WSe2/graphene hybrid exhibits excellent electrocatalytic activity in the hydrogen evolution reaction (HER), such as a low onset overpotential of −100 mV, a small Tafel slope of 64 mV per decade and outstanding stability.

Graphical abstract: Assembled 3D electrocatalysts for efficient hydrogen evolution: WSe2 layers anchored on graphene sheets

Supplementary files

Article information

Article type
Research Article
Submitted
26 oct. 2015
Accepted
27 nov. 2015
First published
03 dic. 2015

Inorg. Chem. Front., 2016,3, 313-319

Author version available

Assembled 3D electrocatalysts for efficient hydrogen evolution: WSe2 layers anchored on graphene sheets

Z. Liu, H. Zhao, N. Li, Y. Zhang, X. Zhang and Y. Du, Inorg. Chem. Front., 2016, 3, 313 DOI: 10.1039/C5QI00216H

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