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DC Field | Value | Language |
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dc.citation.endPage | 7942 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 7936 | - |
dc.citation.title | ENERGY & ENVIRONMENTAL SCIENCE | - |
dc.citation.volume | 5 | - |
dc.contributor.author | Lai, Linfei | - |
dc.contributor.author | Potts, Jeffrey R. | - |
dc.contributor.author | Zhan, Da | - |
dc.contributor.author | Wang, Liang | - |
dc.contributor.author | Poh, Chee Kok | - |
dc.contributor.author | Tang, Chunhua | - |
dc.contributor.author | Gong, Hao | - |
dc.contributor.author | Shen, Zexiang | - |
dc.contributor.author | Lin, Jianyi | - |
dc.contributor.author | Ruoff, Rodney S. | - |
dc.date.accessioned | 2023-12-22T05:06:20Z | - |
dc.date.available | 2023-12-22T05:06:20Z | - |
dc.date.created | 2021-10-18 | - |
dc.date.issued | 2012-07 | - |
dc.description.abstract | We present two different ways to fabricate nitrogen-doped graphene (N-graphene) and demonstrate its use as a metal-free catalyst to study the catalytic active center for the oxygen reduction reaction (ORR). N-graphene was produced by annealing of graphene oxide (G-O) under ammonia or by annealing of a N-containing polymer/reduced graphene oxide (RG-O) composite (polyaniline/RG-O or polypyrrole/RG-O). The effects of the N precursors and annealing temperature on the performance of the catalyst were investigated. The bonding state of the N atom was found to have a significant effect on the selectivity and catalytic activity for ORR. Annealing of G-O with ammonia preferentially formed graphitic N and pyridinic N centers, while annealing of polyaniline/RG-O and polypyrrole/RG-O tended to generate pyridinic and pyrrolic N moieties, respectively. Most importantly, the electrocatalytic activity of the catalyst was found to be dependent on the graphitic N content which determined the limiting current density, while the pyridinic N content improved the onset potential for ORR. However, the total N content in the graphene-based non-precious metal catalyst does not play an important role in the ORR process. | - |
dc.identifier.bibliographicCitation | ENERGY & ENVIRONMENTAL SCIENCE, v.5, no.7, pp.7936 - 7942 | - |
dc.identifier.doi | 10.1039/c2ee21802j | - |
dc.identifier.issn | 1754-5692 | - |
dc.identifier.scopusid | 2-s2.0-84863099883 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/54248 | - |
dc.identifier.url | https://pubs.rsc.org/en/content/articlelanding/2012/EE/c2ee21802j | - |
dc.identifier.wosid | 000305530900033 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Exploration of the active center structure of nitrogen-doped graphene-based catalysts for oxygen reduction reaction | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical; Environmental Sciences | - |
dc.relation.journalResearchArea | Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | HIGH ELECTROCATALYTIC ACTIVITY | - |
dc.subject.keywordPlus | MEMBRANE FUEL-CELLS | - |
dc.subject.keywordPlus | ELECTROCHEMICAL CHARACTERIZATION | - |
dc.subject.keywordPlus | PLATINUM | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | GRAPHITE | - |
dc.subject.keywordPlus | SEARCH | - |
dc.subject.keywordPlus | ARRAYS | - |
dc.subject.keywordPlus | PEMFCS | - |
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