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DC Field | Value | Language |
---|---|---|
dc.citation.number | 40 | - |
dc.citation.startPage | 2002536 | - |
dc.citation.title | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.volume | 30 | - |
dc.contributor.author | Kim, Minkyung | - |
dc.contributor.author | Anjum, Mohsin Ali Raza | - |
dc.contributor.author | Choi, Min | - |
dc.contributor.author | Jeong, Hu Young | - |
dc.contributor.author | Choi, Sun Hee | - |
dc.contributor.author | Park, Noejung | - |
dc.contributor.author | Lee, Jae Sung | - |
dc.date.accessioned | 2023-12-21T17:06:22Z | - |
dc.date.available | 2023-12-21T17:06:22Z | - |
dc.date.created | 2020-09-03 | - |
dc.date.issued | 2020-10 | - |
dc.description.abstract | Ultrasmall Co(9)S(8)nanoparticles are introduced on the basal plane of MoS(2)to fabricate a covalent 0D-2D heterostructure that enhances the hydrogen evolution reaction (HER) activity of electrochemical water splitting. In the heterostructure, separate phases of Co(9)S(8)and MoS(2)are formed, but they are connected by Co-S-Mo type covalent bonds. The charge redistribution from Co to Mo occurring at the interface enhances the electron-doped characteristics of MoS(2)to generate electron-rich Mo atoms. Besides, reductive annealing during the synthesis forms S defects that activates adjacent Mo atoms for further enhanced HER activity as elucidated by the density functional theory (DFT) calculation. Eventually, the covalent Co9S8-MoS(2)heterostructure shows amplified HER activity as well as stability in all pH electrolytes. The synergistic effect is pronounced when the heterostructure is coupled with a porous Ni foam (NF) support to form Co9S8-MoS2/NF that displays superior performance to those of the state-of-the-art non-noble metal electrocatalysts, and even outperforms a commercial Pt/C catalyst in a practically meaningful, high current density region in alkaline (>170 mA cm(-2)) and neutral (>60 mA cm(-2)) media. The high HER performance and stability of Co9S8-MoS(2)heterostructure make it a promising pH universal alternative to expensive Pt-based electrocatalysts for practical water electrolyzers. | - |
dc.identifier.bibliographicCitation | ADVANCED FUNCTIONAL MATERIALS, v.30, no.40, pp.2002536 | - |
dc.identifier.doi | 10.1002/adfm.202002536 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.scopusid | 2-s2.0-85089364878 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/48073 | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.202002536 | - |
dc.identifier.wosid | 000559498100001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Covalent 0D-2D Heterostructuring of Co9S8-MoS(2)for Enhanced Hydrogen Evolution in All pH Electrolytes | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | cobalt sulfide | - |
dc.subject.keywordAuthor | covalent 0D | - |
dc.subject.keywordAuthor | 2D heterostructure | - |
dc.subject.keywordAuthor | hydrogen evolution reaction | - |
dc.subject.keywordAuthor | molybdenum sulfide | - |
dc.subject.keywordAuthor | nonprecious metal electrocatalysts | - |
dc.subject.keywordPlus | TOTAL-ENERGY CALCULATIONS | - |
dc.subject.keywordPlus | MOLYBDENUM-DISULFIDE | - |
dc.subject.keywordPlus | HIGHLY EFFICIENT | - |
dc.subject.keywordPlus | MOS2 NANOSHEETS | - |
dc.subject.keywordPlus | COBALT | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | CO | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | SULFIDE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
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