MOF-derived Co/Co3O4/C hollow structural composite as an efficient electrocatalyst for hydrogen evolution reaction
DC Field | Value | Language |
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dc.contributor.author | Do, Ha Huu | - |
dc.contributor.author | Tekalgne, Mahider Asmare | - |
dc.contributor.author | Tran, Vy Anh | - |
dc.contributor.author | Van Le, Quyet | - |
dc.contributor.author | Cho, Jin Hyuk | - |
dc.contributor.author | Ahn, Sang Hyun | - |
dc.contributor.author | Kim, Soo Young | - |
dc.date.accessioned | 2022-11-11T07:40:09Z | - |
dc.date.available | 2022-11-11T07:40:09Z | - |
dc.date.created | 2022-11-08 | - |
dc.date.issued | 2022-12 | - |
dc.identifier.issn | 0016-2361 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/86005 | - |
dc.description.abstract | Stable, efficient catalysts are crucial for electrochemical water splitting. Metal-organic frameworks (MOFs) can be used to create electrocatalysts meeting these criteria; however, the lack of high-quality electrode materials for the hydrogen evolution reaction impedes their adoption. In this study, a hollow-structured Co/Co3O4/C composite was prepared using a Co-based MOF precursor through a two-step pyrolysis-oxidation process. This composite outperformed nonhollow Co/Co3O4/C structures as well as hollow Co/C and Co3O4/C composites as a catalyst for hydrogen production in alkaline media. It had a low overvoltage of 169 mV at a current density of 10 mA cm(-2) and a moderate Tafel slope of 60.7 mV dec-(1). Moreover, it exhibited remarkable durability with 2000 cycles and 12 h of testing. This can be attributed to the synergistic effect of Co, Co3O4, and the hollow morphological architecture, which promote the dissociation of HO-H bonds, recombination of hydrogen intermediates, and efficient electron transfer. The results of this study are highly promising for the fabrication of cost-effective electrode materials for water splitting. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.relation.isPartOf | FUEL | - |
dc.title | MOF-derived Co/Co3O4/C hollow structural composite as an efficient electrocatalyst for hydrogen evolution reaction | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000861027900005 | - |
dc.identifier.doi | 10.1016/j.fuel.2022.125468 | - |
dc.identifier.bibliographicCitation | FUEL, v.329 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85135399931 | - |
dc.citation.title | FUEL | - |
dc.citation.volume | 329 | - |
dc.contributor.affiliatedAuthor | Tran, Vy Anh | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Metal-organic frameworks | - |
dc.subject.keywordAuthor | Cobalt | - |
dc.subject.keywordAuthor | Cobalt oxide | - |
dc.subject.keywordAuthor | Electrocatalyst | - |
dc.subject.keywordAuthor | Hydrogen evolution reaction | - |
dc.subject.keywordPlus | BIFUNCTIONAL ELECTROCATALYSTS | - |
dc.subject.keywordPlus | ACTIVE ELECTROCATALYST | - |
dc.subject.keywordPlus | OXYGEN | - |
dc.subject.keywordPlus | CATALYSTS | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | HETEROSTRUCTURES | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | MICROSPHERES | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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