Editors' Choice Growth of Layered WS2Electrocatalysts for Highly Efficient Hydrogen Production Reaction

Merfat Alsabban, Shixiong Min, Mohamed N. Hedhili, Jun Ming, Lain-Jong Li, Kuo-Wei Huang

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Seeking more economical alternative electrocatalysts without sacrificing much in performance to replace precious metal Pt is one of the major research topics in hydrogen evolution reactions (HER). Tungsten disulfide (WS2) has been recognized as a promising substitute for Pt owing to its high efficiency and low-cost. Since most existing works adopt solution-synthesized WS2 crystallites for HER, direct growth of WS2 layered materials on conducting substrates should offer new opportunities. The growth of WS2 by the thermolysis of ammonium tetrathiotungstate (NH4)(2)WS4 was examined under various gaseous environments. Structural analysis and electrochemical studies show that the H2S environment leads to the WS2 catalysts with superior HER performance with an extremely low overpotential (eta(10) = 184 mV). (C) The Author(s) 2016. Published by ECS. All rights reserved.
Original languageEnglish (US)
Pages (from-to)Q3067-Q3071
Number of pages1
JournalECS Journal of Solid State Science and Technology
Volume5
Issue number11
DOIs
StatePublished - Aug 17 2016

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