Low-temperature synthesis of molybdenum sulfides, tungsten sulfides, and composites thereof as efficient electrocatalysts for hydrogen evolution reaction
DC Field | Value | Language |
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dc.contributor.author | Do, H.H. | - |
dc.contributor.author | Ha, T.D.C. | - |
dc.contributor.author | Jo, H. | - |
dc.contributor.author | Ok, K.M. | - |
dc.contributor.author | Cho, J.H. | - |
dc.contributor.author | Ahn, Sang Hyun | - |
dc.contributor.author | Kim, M.-G. | - |
dc.contributor.author | Kim, S.Y. | - |
dc.date.accessioned | 2021-11-19T07:40:12Z | - |
dc.date.available | 2021-11-19T07:40:12Z | - |
dc.date.issued | 2022-02-01 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.issn | 1873-5584 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/51671 | - |
dc.description.abstract | In this work, we report a one-step approach for synthesizing molybdenum sulfides and tungsten sulfides, using (N2H5)2MS4 (M = Mo, W) as highly energetic self-catalytic redox precursors and inducing a thermolysis process at various temperatures. These materials’ thermodynamic advantages facilitate the formation of molybdenum/tungsten sulfides at low temperatures. As expected, MoSx-100 °C (which features the [Mo3S13]2− active site model) exhibits the highest catalytic activity of the reported molybdenum sulfides. In addition, an optimized sample of crystalline WS2 was reported to produce hydrogen at 400 °C. Furthermore, the combination of carbon materials significantly enhanced the hydrogen production performance. The optimal sample of reduced graphite oxide (rGO)/MoSx-100 °C required an overpotential of only 125 mV to achieve a current density of 10 mA cm−2 and a shallow Tafel slope of 48.8 mV dec−1; this was attributed to the increased charge transfer from rGO. Furthermore, the catalyst exhibited good stability after 2000 cycles and 12 h of testing. This work may provide an alternative approach for the large-scale synthesis of transition metal dichalcogenides in high-performance catalyst applications. © 2021 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Low-temperature synthesis of molybdenum sulfides, tungsten sulfides, and composites thereof as efficient electrocatalysts for hydrogen evolution reaction | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.apsusc.2021.151828 | - |
dc.identifier.bibliographicCitation | Applied Surface Science, v.576 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000729960800002 | - |
dc.identifier.scopusid | 2-s2.0-85118891892 | - |
dc.citation.title | Applied Surface Science | - |
dc.citation.volume | 576 | - |
dc.type.docType | Article | - |
dc.publisher.location | 네델란드 | - |
dc.subject.keywordAuthor | Composites | - |
dc.subject.keywordAuthor | Electrocatalysts | - |
dc.subject.keywordAuthor | Hydrogen evolution reaction | - |
dc.subject.keywordAuthor | Molybdenum sulfides | - |
dc.subject.keywordAuthor | Tungsten sulfides | - |
dc.subject.keywordPlus | AMORPHOUS MOSX | - |
dc.subject.keywordPlus | DECOMPOSITION | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | WS2 | - |
dc.subject.keywordPlus | THIOMOLYBDATE | - |
dc.subject.keywordPlus | PARAMETERS | - |
dc.subject.keywordPlus | HYDRAZINE | - |
dc.subject.keywordPlus | INSIGHTS | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scopus | - |
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