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DC Field | Value | Language |
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dc.citation.endPage | 9575 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 9567 | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 9 | - |
dc.contributor.author | Kim, Jae Hyung | - |
dc.contributor.author | Sa, Young Jin | - |
dc.contributor.author | Jeong, Hu Young | - |
dc.contributor.author | Joo, Sang Hoon | - |
dc.date.accessioned | 2023-12-21T22:37:40Z | - |
dc.date.available | 2023-12-21T22:37:40Z | - |
dc.date.created | 2017-04-13 | - |
dc.date.issued | 2017-03 | - |
dc.description.abstract | Iron and nitrogen codoped carbons (Fe-N/C) have emerged as promising nonprecious metal catalysts for the oxygen reduction reaction (ORR). While Fe-N-x sites have been widely considered as active species for Fe-N/C catalysts, very recently, iron and/or lion carbide encased with carbon shells (Fe-Fe3C@C) has been suggested as a new active site for the ORR However, most of synthetic routes to Fe-N/C catalysts involve high-temperature pyrolysis, which unavoidably yield both Fe-N-x and Fe-Fe3C@C species, hampering the identification of exclusive role of each species. Herein, in order to establish the respective roles of Fe-N-x and Fe-Fe3C@C sites we rationally designed model catalysts via the phase conversion reactions of Fe3O4 nanoparticles supported on carbon nanotubes. The resulting catalysts selectively contained Fe-N-x, Fe-Fe3C@ C, and N-doped carbon (C-N-x) sites. It was revealed that Fe-N-x sites dominantly catalyze ORR via 4-electron (4 e(-)) pathway, exerting, a major role for high ORR activity, whereas Fe-Fe3C@C sites mainly promote 2 e(-) reduction of oxygen followed by 2 e(-) peroxide reduction, playing an auxiliary role. | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.9, no.11, pp.9567 - 9575 | - |
dc.identifier.doi | 10.1021/acsami.6b13417 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.scopusid | 2-s2.0-85016141112 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/21851 | - |
dc.identifier.url | http://pubs.acs.org/doi/abs/10.1021/acsami.6b13417 | - |
dc.identifier.wosid | 000397478100038 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Roles of Fe-N-X and Fe Fe-Fe3C@C Species in Fe-N/C Electrocatalysts for Oxygen Reduction Reaction | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | electrocatalysis | - |
dc.subject.keywordAuthor | Fe-N/C catalyst | - |
dc.subject.keywordAuthor | active site | - |
dc.subject.keywordAuthor | model system | - |
dc.subject.keywordAuthor | oxygen reduction reaction | - |
dc.subject.keywordPlus | NITROGEN-DOPED CARBON | - |
dc.subject.keywordPlus | IRON CARBIDE NANOPARTICLES | - |
dc.subject.keywordPlus | ACTIVE-SITES | - |
dc.subject.keywordPlus | FE/N/C-CATALYSTS | - |
dc.subject.keywordPlus | GRAPHITIC LAYERS | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | IDENTIFICATION | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | POLYANILINE | - |
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