Jump to main content
Jump to site search

Issue 46, 2019
Previous Article Next Article

Enhanced catalytic activity of edge-exposed 1T phase WS2 grown directly on a WO3 nanohelical array for water splitting

Author affiliations

Abstract

A hierarchical electrode consisting of edge-exposed 1T phase WS2, grown on an array of surface-modified WO3 nanohelixes (NHs), and its enhanced catalytic performance in the hydrogen evolution reaction (HER) are presented. The oxygen-deficient WO3 NH surface modified by controlled annealing facilitates the formation of a rich edge-exposed WS2 during sulfurization. In addition, metallic 1T phase WS2 is preferentially grown on the WO3 NHs owing to the strain induced between WS2 and curved WO3 NHs. Such desirable structural properties, metallic 1T phase and a rich edge-exposed morphology of the catalytic electrode directly resulted in an enhanced HER performance in water splitting.

Graphical abstract: Enhanced catalytic activity of edge-exposed 1T phase WS2 grown directly on a WO3 nanohelical array for water splitting

Back to tab navigation

Supplementary files

Article information


Submitted
22 Jul 2019
Accepted
24 Oct 2019
First published
28 Oct 2019

J. Mater. Chem. A, 2019,7, 26378-26384
Article type
Paper

Enhanced catalytic activity of edge-exposed 1T phase WS2 grown directly on a WO3 nanohelical array for water splitting

N. Lee, I. Y. Choi, K. Doh, J. Kim, H. Sim, D. Lee, S. Choi and J. K. Kim, J. Mater. Chem. A, 2019, 7, 26378
DOI: 10.1039/C9TA07926B

Social activity

Search articles by author

Spotlight

Advertisements