DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bang, Gyeong Sook | ko |
dc.contributor.author | Shim, Gi Woong | ko |
dc.contributor.author | Shin, Gwang Hyuk | ko |
dc.contributor.author | Jung, Dae Yool | ko |
dc.contributor.author | Park, Hamin | ko |
dc.contributor.author | Hong, Won Gi | ko |
dc.contributor.author | Choi, Jinseong | ko |
dc.contributor.author | Lee Jaeseung | ko |
dc.contributor.author | Choi, Sung-Yool | ko |
dc.date.accessioned | 2018-07-24T01:39:00Z | - |
dc.date.available | 2018-07-24T01:39:00Z | - |
dc.date.created | 2018-05-21 | - |
dc.date.created | 2018-05-21 | - |
dc.date.created | 2018-05-21 | - |
dc.date.issued | 2018-05 | - |
dc.identifier.citation | ACS OMEGA, v.3, no.5, pp.5522 - 5530 | - |
dc.identifier.issn | 2470-1343 | - |
dc.identifier.uri | http://hdl.handle.net/10203/243719 | - |
dc.description.abstract | We report a simple approach to fabricate a pyridinic-N-doped graphene film (N-pGF) without high-temperature heat treatment from perforated graphene oxide (pGO). pGO is produced by a short etching treatment with hydrogen peroxide. GO perforation predominated in a short etching time (similar to 1 h), inducing larger holes and defects compared to pristine GO. The pGO is advantageous to the formation of a pyridinic N-doped graphene because of strong NH3 adsorption on vacancies with oxygen functional groups during the nitrogen-doping process, and the pyridinic-N-doped graphene exhibits good electrocatalytic activity for oxygen reduction reaction (ORR). Using rotating-disk electrode measurements, we confirm that N-pGF undergoes a four-electron-transfer process during the ORR in alkaline and acidic media by possessing sufficient diffusion pathways and readily available ORR active sites for efficient mass transport. A comparison between Pt/N-pGF and commercial Pt/C shows that Pt/N-pGF has superior performance, based on its more positive onset potential and higher limiting diffusion current at -0.5 V. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Pyridinic-N-Doped Graphene Paper from Perforated Graphene Oxide for Efficient Oxygen Reduction | - |
dc.type | Article | - |
dc.identifier.wosid | 000434355300091 | - |
dc.identifier.scopusid | 2-s2.0-85047512122 | - |
dc.type.rims | ART | - |
dc.citation.volume | 3 | - |
dc.citation.issue | 5 | - |
dc.citation.beginningpage | 5522 | - |
dc.citation.endingpage | 5530 | - |
dc.citation.publicationname | ACS OMEGA | - |
dc.identifier.doi | 10.1021/acsomega.8b00400 | - |
dc.contributor.localauthor | Choi, Sung-Yool | - |
dc.contributor.nonIdAuthor | Hong, Won Gi | - |
dc.contributor.nonIdAuthor | Choi, Jinseong | - |
dc.contributor.nonIdAuthor | Lee Jaeseung | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
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