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dc.contributor.authorSi, Jincheng
dc.contributor.authorZheng, Qiang
dc.contributor.authorChen, Hanlin
dc.contributor.authorLei, Chaojun
dc.contributor.authorSuo, Yange
dc.contributor.authorYang, Bin
dc.contributor.authorZhang, Zhiguo
dc.contributor.authorLi, Zhongjian
dc.contributor.authorLei, Lecheng
dc.contributor.authorHou, Yang
dc.contributor.authorOstrikov, Kostya Ken
dc.date.accessioned2019-07-11T03:02:12Z
dc.date.available2019-07-11T03:02:12Z
dc.date.issued2019
dc.identifier.issn1944-8244
dc.identifier.doi10.1021/acsami.8b22052
dc.identifier.urihttp://hdl.handle.net/10072/385151
dc.description.abstractTwo-dimensional (2D) niobium disulfide (NbS2) materials feature unique physical and chemical properties leading to highly promising energy conversion applications. Herein, we developed a robust synthesis technique consisting of electrochemical exfoliation under alternating currents and subsequent liquid-phase exfoliation to prepare highly uniform few-layer NbS2 nanosheets. The obtained few-layer NbS2 material has a 2D nanosheet structure with an ultrathin thickness of ∼3 nm and a lateral size of ∼2 μm. Benefiting from their unique 2D structure and highly exposed active sites, the few-layer NbS2 nanosheets drop-casted on carbon paper exhibited excellent catalytic activity for the hydrogen evolution reaction (HER) in acid with an overpotential of 90 mV at a current density of 10 mA cm–2 and a low Tafel slope of 83 mV dec–1, which are superior to those reported for other NbS2-based HER electrocatalysts. Furthermore, few-layer NbS2 nanosheets are effective as bifunctional electrocatalysts for hydrogen production by overall water splitting, where the urea and hydrazine oxidation reactions replace the oxygen evolution reaction.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAMER CHEMICAL SOC
dc.relation.ispartofpagefrom13205
dc.relation.ispartofpageto13213
dc.relation.ispartofissue14
dc.relation.ispartofjournalACS APPLIED MATERIALS & INTERFACES
dc.relation.ispartofvolume11
dc.subject.fieldofresearchChemical sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchcode34
dc.subject.fieldofresearchcode40
dc.titleScalable Production of Few-Layer Niobium Disulfide Nanosheets via Electrochemical Exfoliation for Energy-Efficient Hydrogen Evolution Reaction
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorOstrikov, Ken


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