Chemical and structural engineering of transition metal boride towards excellent and sustainable hydrogen evolution reaction
DC Field | Value | Language |
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dc.contributor.author | Dutta, Soumen | - |
dc.contributor.author | Han, HyukSu | - |
dc.contributor.author | Je, Minyeong | - |
dc.contributor.author | Choi, Heechae | - |
dc.contributor.author | Kwon, Jiseok | - |
dc.contributor.author | Park, Keemin | - |
dc.contributor.author | Indra, Arindam | - |
dc.contributor.author | Kim, Kang Min | - |
dc.contributor.author | Paik, Ungyu | - |
dc.contributor.author | Song, Taeseup | - |
dc.date.available | 2021-03-17T07:46:07Z | - |
dc.date.created | 2020-07-06 | - |
dc.date.issued | 2020-01 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/12418 | - |
dc.description.abstract | Herein, holey, thin, conductive nickel substituted cobalt molybdenum boride (Ni-CMB) nanosheets have been designed to obtain superior electrochemical HER performance with small overpotential of 69 mV at 10 mA cm(-2) current density and lower Tafel slope of 76.3 mV dec(-1) in alkaline medium. Incorporation of Ni leads to improved conductivity and favorable hydrogen adsorption on Mo sites, which collectively yield efficient electrocatalytic H-2 production from Ni-CMB catalyst. The ultrathin nature (thickness = 5.0 nm) of the designed material expectedly helps to attain high exposure of active sites and facile charge transportation through the nanosheets. Additionally, the decorated mesopores (average size = 3.86 nm) on nanosheets have benefitted towards faster electrolyte diffusion, easy gas escape from catalyst surface to support high electrocatalytic performance. Finally, well-maintained morphology of the sample and evolution of HER active sites in the material have guaranteed long-term, sustainable hydrogen production even at high current densities, which clearly demonstrate its superiority over an expensive electrolyzer (Pt-C) in alkaline water. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | HIGHLY-ACTIVE ELECTROCATALYSTS | - |
dc.subject | TOTAL-ENERGY CALCULATIONS | - |
dc.subject | OXYGEN EVOLUTION | - |
dc.subject | EFFICIENT ELECTROCATALYST | - |
dc.subject | WATER | - |
dc.subject | NANOSHEETS | - |
dc.subject | FILMS | - |
dc.title | Chemical and structural engineering of transition metal boride towards excellent and sustainable hydrogen evolution reaction | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Han, HyukSu | - |
dc.identifier.doi | 10.1016/j.nanoen.2019.104245 | - |
dc.identifier.scopusid | 2-s2.0-85075364649 | - |
dc.identifier.wosid | 000504828100018 | - |
dc.identifier.bibliographicCitation | NANO ENERGY, v.67 | - |
dc.relation.isPartOf | NANO ENERGY | - |
dc.citation.title | NANO ENERGY | - |
dc.citation.volume | 67 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | HIGHLY-ACTIVE ELECTROCATALYSTS | - |
dc.subject.keywordPlus | TOTAL-ENERGY CALCULATIONS | - |
dc.subject.keywordPlus | OXYGEN EVOLUTION | - |
dc.subject.keywordPlus | EFFICIENT ELECTROCATALYST | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordAuthor | Metal boride | - |
dc.subject.keywordAuthor | Holey nanosheets | - |
dc.subject.keywordAuthor | Hydrogen evolution reaction | - |
dc.subject.keywordAuthor | Lower overpotential | - |
dc.subject.keywordAuthor | Durability | - |
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