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dc.contributor.authorGuo, X.
dc.contributor.authorJi, J.
dc.contributor.authorJiang, Q.
dc.contributor.authorZhang, L.
dc.contributor.authorAo, Z.
dc.contributor.authorFan, X.
dc.contributor.authorWang, Shaobin
dc.contributor.authorLi, Y.
dc.contributor.authorZhang, F.
dc.contributor.authorZhang, G.
dc.contributor.authorPeng, W.
dc.date.accessioned2017-11-20T08:49:13Z
dc.date.available2017-11-20T08:49:13Z
dc.date.created2017-11-20T08:13:31Z
dc.date.issued2017
dc.identifier.citationGuo, X. and Ji, J. and Jiang, Q. and Zhang, L. and Ao, Z. and Fan, X. and Wang, S. et al. 2017. Few-Layered Trigonal WS<inf>2</inf>Nanosheet-Coated Graphite Foam as an Efficient Free-Standing Electrode for a Hydrogen Evolution Reaction. ACS Applied Materials and Interfaces. 9 (36): pp. 30591-30598.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/57823
dc.identifier.doi10.1021/acsami.7b06613
dc.description.abstract

© 2017 American Chemical Society. Few-layered tungsten disulfide (WS 2 ) with a controlled-phase ratio (the highest trigonal-phase ratio being 67%) was exfoliated via lithium insertion. The exfoliated WS 2 nanosheets were then anchored onto three-dimensional (3D) graphite foam (GF) to fabricate free-standing binder-free electrodes. The 3D GF can increase the interfacial contact between the WS 2 nanosheets and the electrolyte and facilitate ion transfer. Without the nonconductive binder, an intimate contact between the WS 2 and GF interface can be created, leading to the improvement of electrical conductivity. In comparison to the pure WS 2 nanosheets, the overpotential for a hydrogen evolution reaction is significantly decreased from 350 mV to 190 mV at 10 mA/cm 2 , and no deactivation occurs after 1000 cycles. The density functional theory computations reveal that the efficient catalytic activity of the trigonal-phase WS 2 /GF electrode is attributed to the lower Gibbs free energy for H* adsorption and higher electrical conductivity.

dc.publisherAmerican Chemical Society
dc.titleFew-Layered Trigonal WS<inf>2</inf>Nanosheet-Coated Graphite Foam as an Efficient Free-Standing Electrode for a Hydrogen Evolution Reaction
dc.typeJournal Article
dcterms.source.volume9
dcterms.source.number36
dcterms.source.startPage30591
dcterms.source.endPage30598
dcterms.source.issn1944-8244
dcterms.source.titleACS Applied Materials and Interfaces
curtin.departmentDepartment of Chemical Engineering
curtin.accessStatusFulltext not available


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