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DC Field | Value | Language |
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dc.citation.endPage | 527 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 523 | - |
dc.citation.title | ENERGY & ENVIRONMENTAL SCIENCE | - |
dc.citation.volume | 10 | - |
dc.contributor.author | Lee, Dong-Gyu | - |
dc.contributor.author | Kim, Su Hwan | - |
dc.contributor.author | Joo, Se Hun | - |
dc.contributor.author | Ji, Ho-Il | - |
dc.contributor.author | Tavassol, Hadi | - |
dc.contributor.author | Jeon, Yuju | - |
dc.contributor.author | Choi, Suhyuk | - |
dc.contributor.author | Lee, Myeing-Hee | - |
dc.contributor.author | Kim, Chanseok | - |
dc.contributor.author | Kwak, Sang Kyu | - |
dc.contributor.author | Kim, Guntae | - |
dc.contributor.author | Song, Hyun-Kon | - |
dc.date.accessioned | 2023-12-21T22:40:45Z | - |
dc.date.available | 2023-12-21T22:40:45Z | - |
dc.date.created | 2017-01-18 | - |
dc.date.issued | 2017-02 | - |
dc.description.abstract | Nitrogen-containing electrocatalysts, such as metal-nitrogen-carbon (M-N-C) composites and nitrogen-doped carbons, are known to exhibit high activities for an oxygen reduction reaction (ORR). Moreover, even if the mechanism by which nitrogen improves the activities is not completely understood, a strong electronic interaction between nitrogen and active sites has been found in these composites. Herein, we demonstrate a case in which nitrogen improves the electroactivity, but in the absence of a strong interaction with other components. The overpotentials of the ORR and oxygen evolution reaction (OER) on perovskite oxide catalysts were significantly reduced simply by mixing the catalyst particles with polypyrrole/carbon composites (pPy/C). Any strong interactions between pPy (a nitrogen-containing compound) and active sites of the catalysts are not confirmed. A scenario based on the sequential task allocation between pPy and oxide catalysts for the ORR was proposed: (1) molecular oxygen is incorporated into pPy as a form of superoxide (pPy(+)O(2)(-)), (2) the superoxide is transferred to the active sites of perovskite catalysts, and (3) the superoxide is completely reduced along the 4e ORR process. | - |
dc.identifier.bibliographicCitation | ENERGY & ENVIRONMENTAL SCIENCE, v.10, no.2, pp.523 - 527 | - |
dc.identifier.doi | 10.1039/C6EE03501A | - |
dc.identifier.issn | 1754-5692 | - |
dc.identifier.scopusid | 2-s2.0-85014326268 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/21156 | - |
dc.identifier.url | http://pubs.rsc.org/en/content/articlelanding/2017/ee/c6ee03501a#!divAbstract | - |
dc.identifier.wosid | 000395679100010 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Polypyrrole-assisted oxygen electrocatalysis on perovskite oxides | - |
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.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | METAL-AIR BATTERIES | - |
dc.subject.keywordPlus | FUEL-CELLS | - |
dc.subject.keywordPlus | REDUCTION REACTION | - |
dc.subject.keywordPlus | CONDUCTING POLYMERS | - |
dc.subject.keywordPlus | EVOLUTION REACTION | - |
dc.subject.keywordPlus | LI-AIR | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | COMPOSITE | - |
dc.subject.keywordPlus | PLATINUM | - |
dc.subject.keywordPlus | GRAPHENE | - |
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