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김광수

Kim, Kwang S.
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dc.citation.number 25 -
dc.citation.startPage 1801002 -
dc.citation.title ADVANCED ENERGY MATERIALS -
dc.citation.volume 8 -
dc.contributor.author Sultan, Siraj -
dc.contributor.author Tiwari, Jitendra N. -
dc.contributor.author Jang, Jue-Hyuk -
dc.contributor.author Harzandi, Ahmad M. -
dc.contributor.author Salehnia, Foad -
dc.contributor.author Yoo, Sung Jong -
dc.contributor.author Kim, Kwang S. -
dc.date.accessioned 2023-12-21T20:14:12Z -
dc.date.available 2023-12-21T20:14:12Z -
dc.date.created 2018-10-10 -
dc.date.issued 2018-09 -
dc.description.abstract Nonprecious metals are promising catalysts to avoid the sluggish oxygen reduction reaction (ORR) in next-generation regenerative fuel cells or metalair batteries. Therefore, development of nonprecious metal catalysts for ORR is highly desirable. Herein, precise tuning of the atomic ratio of Fe and Co encapsulated in melamine-derived nitrogen-rich graphitic tube (NGT) is reported. The Co1.08Fe3.34 hybrid with metal. nitrogen bonds (1: Co1.08Fe3.34@ NGT) shows remarkable ORR catalytic activities (80 mV higher in onset potential and 50 mV higher in half-wave potential than those of state-ofthe- art commercial Pt/C catalysts), high current density, and stability. In acidic solution, 1 also shows compatible performance to commercial Pt/C in terms of ORR activity, current density, stability, and methanol tolerance. The high ORR activity is ascribed to the co-existence of Fe-N, Co-N, and sufficient metallic FeCo alloys which favor faster electron movement and better adsorption of oxygen molecules on the catalyst surface. In the alkaline anion exchange membrane fuel cell setup, this cell delivers the power density of 117 mW cm(-2), demonstrating its potential use for energy conversion and storage applications. -
dc.identifier.bibliographicCitation ADVANCED ENERGY MATERIALS, v.8, no.25, pp.1801002 -
dc.identifier.doi 10.1002/aenm.201801002 -
dc.identifier.issn 1614-6832 -
dc.identifier.scopusid 2-s2.0-85052810409 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/24976 -
dc.identifier.url https://onlinelibrary.wiley.com/doi/abs/10.1002/aenm.201801002 -
dc.identifier.wosid 000443674100007 -
dc.language 영어 -
dc.publisher WILEY-V C H VERLAG GMBH -
dc.title Highly Efficient Oxygen Reduction Reaction Activity of Graphitic Tube Encapsulating Nitrided CoxFe gamma Alloy -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter -
dc.relation.journalResearchArea Chemistry; Energy & Fuels; Materials Science; Physics -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor alkaline fuel cells -
dc.subject.keywordAuthor electrocatalysts -
dc.subject.keywordAuthor graphitic tubes -
dc.subject.keywordAuthor nitrided CoxFe gamma alloys -
dc.subject.keywordAuthor oxygen reduction reaction -
dc.subject.keywordPlus NANOTUBE-GRAFTED NITROGEN -
dc.subject.keywordPlus MEMBRANE FUEL-CELLS -
dc.subject.keywordPlus CARBON NANOTUBES -
dc.subject.keywordPlus EVOLUTION REACTION -
dc.subject.keywordPlus AIR BATTERIES -
dc.subject.keywordPlus ELECTROCATALYSTS -
dc.subject.keywordPlus GRAPHENE -
dc.subject.keywordPlus NANOPARTICLES -
dc.subject.keywordPlus CATALYSTS -
dc.subject.keywordPlus IRON -

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