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DC Field | Value | Language |
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dc.citation.endPage | 107117 | - |
dc.citation.title | NANO ENERGY | - |
dc.citation.volume | 96 | - |
dc.contributor.author | Cao, Chen Tian | - |
dc.contributor.author | Kim, Sun-Woo | - |
dc.contributor.author | Kim, Hee Jun | - |
dc.contributor.author | Purbia, Rahul | - |
dc.contributor.author | Kim, Sang Heon | - |
dc.contributor.author | Kim, Dokyoung | - |
dc.contributor.author | Choi, Kyoung Jin | - |
dc.contributor.author | Park, Hyesung | - |
dc.contributor.author | Baik, Jeong Min | - |
dc.date.accessioned | 2023-12-21T14:09:22Z | - |
dc.date.available | 2023-12-21T14:09:22Z | - |
dc.date.created | 2022-04-29 | - |
dc.date.issued | 2022-06 | - |
dc.description.abstract | ABSTR A C T A bifunctional electrocatalyst interface requires superior charge transfer and good electrical conductivity to produce a water splitting reaction that is overall efficient and stable. In the context of engineering the interfacial band alignment, we demonstrate a novel and straightforward approach to control the electrochemical activity of the bifunctional catalysts with precision by bridging conductive N-doped graphene quantum dots (N-GQDs, 2-3 nm) between La0.5Sr0.5CoO3-delta (LSC) and MoSe2 interfaces. The N-GQDs govern the charge transfer process at the interface, exhibiting higher Co3+ cations and metallic 1 T-MoSe2 phase-transition compared to those of LSC and LSC-MoSe2 composites. As a result, the optimized LSC-N-GQDs-MoSe2 electrocatalyst possessed a lower over -potential, Tafel slope, and charge transfer resistance in HER and OER than pure and LSC-MoSe2 electrocatalysts in an alkaline solution. The Tafel slopes (64 mV & BULL;dec(-1) and 51 mV & BULL;dec(-1) for HER and OER respectively) are smaller than those of current solutions that are commercially available, showing a higher performance at a high current density of 500 mA & BULL;cm(-2) with a long-term 24 h stability test. The key design of the current study is based on conductive bridging in the bifunctional catalyst to improve the interfacial charge transfer and electrochemical reaction. | - |
dc.identifier.bibliographicCitation | NANO ENERGY, v.96 | - |
dc.identifier.doi | 10.1016/j.nanoen.2022.107117 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.scopusid | 2-s2.0-85125861852 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/58371 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S2211285522001987?via%3Dihub | - |
dc.identifier.wosid | 000781269200004 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER | - |
dc.title | N-doped graphene quantum dots as charge-transfer-bridge at LaSrCoO/MoSe2 heterointerfaces for enhanced water splitting | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Bifunctional electrocatalyst | - |
dc.subject.keywordAuthor | Perovskite | - |
dc.subject.keywordAuthor | MoSe2 | - |
dc.subject.keywordAuthor | Interfacial band alignment engineering | - |
dc.subject.keywordAuthor | N -doped graphene quantum dots | - |
dc.subject.keywordPlus | EFFICIENT BIFUNCTIONAL CATALYST | - |
dc.subject.keywordPlus | OXYGEN EVOLUTION REACTION | - |
dc.subject.keywordPlus | HYDROGEN EVOLUTION | - |
dc.subject.keywordPlus | MOSE2 NANOSHEETS | - |
dc.subject.keywordPlus | CARBON SPHERES | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | COBALT | - |
dc.subject.keywordPlus | NANORIBBONS | - |
dc.subject.keywordPlus | VACANCIES | - |
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