Metal–Organic Framework–Derived Mesoporous B-Doped CoO/Co@N-Doped Carbon Hybrid 3D Heterostructured Interfaces with Modulated Cobalt
DC Field | Value | Language |
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dc.contributor.author | Cha, Dun Chan | - |
dc.contributor.author | Singh, Thangjam Ibomcha | - |
dc.contributor.author | Maibam, Ashakiran | - |
dc.contributor.author | Kim, Tae Hyeong | - |
dc.contributor.author | Nam, Dong Hwan | - |
dc.contributor.author | Babarao, Ravichandar | - |
dc.contributor.author | Lee, Seunghyun | - |
dc.date.accessioned | 2023-07-27T12:14:42Z | - |
dc.date.available | 2023-07-27T12:14:42Z | - |
dc.date.created | 2023-05-30 | - |
dc.date.issued | 2023-05 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/188354 | - |
dc.description.abstract | Heteroatom-doped transition metal-oxides of high oxygen evolution reaction (OER) activities interfaced with metals of low hydrogen adsorption energy barrier for efficient hydrogen evolution reaction (HER) when uniformly embedded in a conductive nitrogen-doped carbon (NC) matrix, can mitigate the low-conductivity and high-agglomeration of metal-nanoparticles in carbon matrix and enhances their bifunctional activities. Thus, a 3D mesoporous heterostructure of boron (B)-doped cobalt-oxide/cobalt-metal nanohybrids embedded in NC and grown on a Ni foam substrate (B-CoO/Co@NC/NF) is developed as a binder-free bifunctional electrocatalyst for alkaline water-splitting via a post-synthetic modification of the metal–organic framework and subsequent annealing in different Ar/H2 gas ratios. B-CoO/Co@NC/NF prepared using 10% H2 gas (B-CoO/Co@NC/NF [10% H2]) shows the lowest HER overpotential (196 mV) and B-CoO/Co@NC/NF (Ar), developed in Ar, shows an OER overpotential of 307 mV at 10 mA cm−2 with excellent long-term durability for 100 h. The best anode and cathode electrocatalyst-based electrolyzer (B-CoO/Co@NC/NF (Ar)(+)//B-CoO/Co@NC/NF (10% H2)(−)) generates a current density of 10 mA cm−2 with only 1.62 V with long-term stability. Further, density functional theory investigations demonstrate the effect of B-doping on electronic structure and reaction mechanism of the electrocatalysts for optimal interaction with reaction intermediates for efficient alkaline water-splitting which corroborates the experimental results. © 2023 Wiley-VCH GmbH. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Wiley - V C H Verlag GmbbH & Co. | - |
dc.title | Metal–Organic Framework–Derived Mesoporous B-Doped CoO/Co@N-Doped Carbon Hybrid 3D Heterostructured Interfaces with Modulated Cobalt | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Seunghyun | - |
dc.identifier.doi | 10.1002/smll.202301405 | - |
dc.identifier.scopusid | 2-s2.0-85159055125 | - |
dc.identifier.wosid | 000985172400001 | - |
dc.identifier.bibliographicCitation | Small, pp.1 - 17 | - |
dc.relation.isPartOf | Small | - |
dc.citation.title | Small | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 17 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
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, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | BOROHYDRIDE REDUCTION | - |
dc.subject.keywordPlus | HYDROGEN EVOLUTION | - |
dc.subject.keywordPlus | BORIDE | - |
dc.subject.keywordPlus | OXIDES | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | POLYANILINE | - |
dc.subject.keywordPlus | NANOSCALE | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | IONS | - |
dc.subject.keywordPlus | XPS | - |
dc.subject.keywordAuthor | 3D heterostructures | - |
dc.subject.keywordAuthor | B-doped metal-oxides | - |
dc.subject.keywordAuthor | electrocatalysts | - |
dc.subject.keywordAuthor | hydrogenevolution reactions | - |
dc.subject.keywordAuthor | metal–organic frameworks | - |
dc.subject.keywordAuthor | oxygen evolution reac-tions | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/full/10.1002/smll.202301405 | - |
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