Strained W(SexS1-x)2 Nanoporous Films for Highly Efficient Hydrogen Evolution

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Kun Liang
  • Yong Yan
  • Limin Guo
  • Kyle Marcus
  • Zhao Li
  • Le Zhou
  • Yilun Li
  • Nina Orlovskaya
  • Yong-Ho Sohn
  • Yang Yang

Detail(s)

Original languageEnglish
Pages (from-to)1315-1320
Number of pages6
Journal / PublicationACS Energy Letters
Volume2
Issue number6
Online published8 May 2017
Publication statusPublished - 9 Jun 2017
Externally publishedYes

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.

Citation Format(s)

Strained W(SexS1-x)2 Nanoporous Films for Highly Efficient Hydrogen Evolution. / Liang, Kun; Yan, Yong; Guo, Limin; Marcus, Kyle; Li, Zhao; Zhou, Le; Li, Yilun; Ye, Ruquan; Orlovskaya, Nina; Sohn, Yong-Ho; Yang, Yang.

In: ACS Energy Letters, Vol. 2, No. 6, 09.06.2017, p. 1315-1320.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review