dc.contributor.author | Si, Jincheng | |
dc.contributor.author | Zheng, Qiang | |
dc.contributor.author | Chen, Hanlin | |
dc.contributor.author | Lei, Chaojun | |
dc.contributor.author | Suo, Yange | |
dc.contributor.author | Yang, Bin | |
dc.contributor.author | Zhang, Zhiguo | |
dc.contributor.author | Li, Zhongjian | |
dc.contributor.author | Lei, Lecheng | |
dc.contributor.author | Hou, Yang | |
dc.contributor.author | Ostrikov, Kostya Ken | |
dc.date.accessioned | 2019-07-11T03:02:12Z | |
dc.date.available | 2019-07-11T03:02:12Z | |
dc.date.issued | 2019 | |
dc.identifier.issn | 1944-8244 | |
dc.identifier.doi | 10.1021/acsami.8b22052 | |
dc.identifier.uri | http://hdl.handle.net/10072/385151 | |
dc.description.abstract | Two-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.peerreviewed | Yes | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | AMER CHEMICAL SOC | |
dc.relation.ispartofpagefrom | 13205 | |
dc.relation.ispartofpageto | 13213 | |
dc.relation.ispartofissue | 14 | |
dc.relation.ispartofjournal | ACS APPLIED MATERIALS & INTERFACES | |
dc.relation.ispartofvolume | 11 | |
dc.subject.fieldofresearch | Chemical sciences | |
dc.subject.fieldofresearch | Engineering | |
dc.subject.fieldofresearchcode | 34 | |
dc.subject.fieldofresearchcode | 40 | |
dc.title | Scalable Production of Few-Layer Niobium Disulfide Nanosheets via Electrochemical Exfoliation for Energy-Efficient Hydrogen Evolution Reaction | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - Journal Articles | |
gro.hasfulltext | No Full Text | |
gro.griffith.author | Ostrikov, Ken | |