Few-Layered Trigonal WS2Nanosheet-Coated Graphite Foam as an Efficient Free-Standing Electrode for a Hydrogen Evolution Reaction
dc.contributor.author | Guo, X. | |
dc.contributor.author | Ji, J. | |
dc.contributor.author | Jiang, Q. | |
dc.contributor.author | Zhang, L. | |
dc.contributor.author | Ao, Z. | |
dc.contributor.author | Fan, X. | |
dc.contributor.author | Wang, Shaobin | |
dc.contributor.author | Li, Y. | |
dc.contributor.author | Zhang, F. | |
dc.contributor.author | Zhang, G. | |
dc.contributor.author | Peng, W. | |
dc.date.accessioned | 2017-11-20T08:49:13Z | |
dc.date.available | 2017-11-20T08:49:13Z | |
dc.date.created | 2017-11-20T08:13:31Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Guo, 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 WS2Nanosheet-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.uri | http://hdl.handle.net/20.500.11937/57823 | |
dc.identifier.doi | 10.1021/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.publisher | American Chemical Society | |
dc.title | Few-Layered Trigonal WS2Nanosheet-Coated Graphite Foam as an Efficient Free-Standing Electrode for a Hydrogen Evolution Reaction | |
dc.type | Journal Article | |
dcterms.source.volume | 9 | |
dcterms.source.number | 36 | |
dcterms.source.startPage | 30591 | |
dcterms.source.endPage | 30598 | |
dcterms.source.issn | 1944-8244 | |
dcterms.source.title | ACS Applied Materials and Interfaces | |
curtin.department | Department of Chemical Engineering | |
curtin.accessStatus | Fulltext not available |
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