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DC Field | Value | Language |
---|---|---|
dc.citation.number | 29 | - |
dc.citation.startPage | 2300551 | - |
dc.citation.title | SMALL | - |
dc.citation.volume | 19 | - |
dc.contributor.author | Ha, Seong-Ji | - |
dc.contributor.author | Hwang, Jongha | - |
dc.contributor.author | Kwak, Myung-Jun | - |
dc.contributor.author | Yoon, Jong-Chul | - |
dc.contributor.author | Jang, Ji-Hyun | - |
dc.date.accessioned | 2023-12-21T12:42:29Z | - |
dc.date.available | 2023-12-21T12:42:29Z | - |
dc.date.created | 2023-05-11 | - |
dc.date.issued | 2023-07 | - |
dc.description.abstract | Carbon-based electrocatalysts with both high activity and high stability are desirable for use in Zn-air batteries. However, the carbon corrosion reaction (CCR) is a critical obstacle in rechargeable Zn-air batteries. In this study, a cost-effective carbon-based novel material is reported with a high catalytic effect and good durability for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), prepared via a simple graphitization process. In situ growth of graphene is utilized in a 3D-metal-coordinated hydrogel by introducing a catalytic lattice of transition metal alloys. Due to the direct growth of few-layer graphene on the metal alloy decorated 3d-carbon network, greatly reduced CCR is observed in a repetitive OER test. As a result, an efficient bifunctional electrocatalytic performance is achieved with a low ?E value of 0.63 V and good electrochemical durability for 83 h at a current density of 10 mA cm(-2) in an alkaline media. Moreover, graphene-encapsulated transition metal alloys on the nitrogen-doped carbon supporter exhibit an excellent catalytic effect and good durability in a Zn-air battery system. This study suggests a straightforward way to overcome the CCR of carbon-based materials for an electrochemical catalyst with wide application in energy conversion and energy storage devices. | - |
dc.identifier.bibliographicCitation | SMALL, v.19, no.29, pp.2300551 | - |
dc.identifier.doi | 10.1002/smll.202300551 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.scopusid | 2-s2.0-85152890069 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/64327 | - |
dc.identifier.wosid | 000970804700001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Graphene-Encapsulated Bifunctional Catalysts with High Activity and Durability for Zn-Air Battery | - |
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 | bifunctional catalysts | - |
dc.subject.keywordAuthor | carbon corrosion reaction | - |
dc.subject.keywordAuthor | oxygen catalysts | - |
dc.subject.keywordAuthor | transition metal nitrogen carbon | - |
dc.subject.keywordAuthor | Zn-air batteries (ZABs) | - |
dc.subject.keywordPlus | OXYGEN REDUCTION | - |
dc.subject.keywordPlus | CARBON | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | IDENTIFICATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | NANOWIRES | - |
dc.subject.keywordPlus | SURFACES | - |
dc.subject.keywordPlus | DEFECTS | - |
dc.subject.keywordPlus | TRENDS | - |
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