Strained W(SeXS1-X)2 Nanoporous Films For Highly Efficient Hydrogen Evolution

Abstract

A W(SexS1-x)2 nanoporous architecture (NPA) was developed by facile anodic and chemical vapor deposition treatments. The ternary W(SexS1-x)2 NPA offers significant advantages toward high-efficiency hydrogen generation: (i) Nanoporous morphology provides more electrochemically active sites to split water. (ii) Lattice mismatch and disordering in the mix-phased W(SexS1-x)2 film introduce more defects to enhance the catalytic activity. (iii) Conducting 1T phase formed in the strained W(SexS1-x)2 facilitates the electron transfer during catalytic reactions. Therefore, an onset overpotential of 45 mV and a Tafel slope of 59 mV dec-1 were achieved using the as-prepared W(SexS1-x)2 NPA.

Publication Date

6-9-2017

Publication Title

ACS Energy Letters

Volume

2

Issue

6

Number of Pages

1315-1320

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1021/acsenergylett.7b00326

Socpus ID

85033682322 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85033682322

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