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Article: MoS:X-coated NbS2 nanoflakes grown on glass carbon: An advanced electrocatalyst for the hydrogen evolution reaction

TitleMoS:<inf>X</inf>-coated NbS<inf>2</inf> nanoflakes grown on glass carbon: An advanced electrocatalyst for the hydrogen evolution reaction
Authors
Issue Date2018
Citation
Nanoscale, 2018, v. 10, n. 7, p. 3444-3450 How to Cite?
AbstractRecent experimental and theoretical studies have demonstrated that two-dimensional (2D) transition metal dichalcogenide (TMDC) nanoflakes are one of the most promising candidates for non-noblemetal electrocatalysts for hydrogen evolution reaction (HER). However, it is still challenging to optimize their conductivity and enrich active sites for highly efficient electrochemical performance. Herein, we report a chemical vapor deposition (CVD) and thermal annealing two-step strategy to controllably synthesize hybrid electrocatalysts consisting of metallic NbS nanoflake backbones and a highly catalytic active MoS nanocrystalline shell on polished commercial glass carbon (GC). In addition, the amount of MoS in the hybrids can be easily adjusted. We first demonstrate that a small amount of MoS significantly promotes the HER activity of 2D NbS nanoflakes, which is in good agreement with the density functional theory (DFT) calculation results. Moreover, the optimized MoS @NbS /GC electrocatalyst displays superior HER activity with overpotential of -164 mV at -10 mA cm , a small Tafel slope of 43.2 mV dec , and prominent electrochemical stability. This study provides a new path for enhancing the HER performance of 2D TMDC nanoflakes. 2 x x x 2 x 2 -2 -1
Persistent Identifierhttp://hdl.handle.net/10722/298253
ISSN
2023 Impact Factor: 5.8
2023 SCImago Journal Rankings: 1.416
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhou, Xiaofeng-
dc.contributor.authorLin, Shi Hsin-
dc.contributor.authorYang, Xiulin-
dc.contributor.authorLi, Henan-
dc.contributor.authorHedhili, Mohamed Nejib-
dc.contributor.authorLi, Lain Jong-
dc.contributor.authorZhang, Wenjing-
dc.contributor.authorShi, Yumeng-
dc.date.accessioned2021-04-08T03:08:00Z-
dc.date.available2021-04-08T03:08:00Z-
dc.date.issued2018-
dc.identifier.citationNanoscale, 2018, v. 10, n. 7, p. 3444-3450-
dc.identifier.issn2040-3364-
dc.identifier.urihttp://hdl.handle.net/10722/298253-
dc.description.abstractRecent experimental and theoretical studies have demonstrated that two-dimensional (2D) transition metal dichalcogenide (TMDC) nanoflakes are one of the most promising candidates for non-noblemetal electrocatalysts for hydrogen evolution reaction (HER). However, it is still challenging to optimize their conductivity and enrich active sites for highly efficient electrochemical performance. Herein, we report a chemical vapor deposition (CVD) and thermal annealing two-step strategy to controllably synthesize hybrid electrocatalysts consisting of metallic NbS nanoflake backbones and a highly catalytic active MoS nanocrystalline shell on polished commercial glass carbon (GC). In addition, the amount of MoS in the hybrids can be easily adjusted. We first demonstrate that a small amount of MoS significantly promotes the HER activity of 2D NbS nanoflakes, which is in good agreement with the density functional theory (DFT) calculation results. Moreover, the optimized MoS @NbS /GC electrocatalyst displays superior HER activity with overpotential of -164 mV at -10 mA cm , a small Tafel slope of 43.2 mV dec , and prominent electrochemical stability. This study provides a new path for enhancing the HER performance of 2D TMDC nanoflakes. 2 x x x 2 x 2 -2 -1-
dc.languageeng-
dc.relation.ispartofNanoscale-
dc.titleMoS:<inf>X</inf>-coated NbS<inf>2</inf> nanoflakes grown on glass carbon: An advanced electrocatalyst for the hydrogen evolution reaction-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1039/c7nr09172a-
dc.identifier.pmid29393949-
dc.identifier.scopuseid_2-s2.0-85042197339-
dc.identifier.volume10-
dc.identifier.issue7-
dc.identifier.spage3444-
dc.identifier.epage3450-
dc.identifier.eissn2040-3372-
dc.identifier.isiWOS:000425348100038-
dc.identifier.issnl2040-3364-

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