Enhanced activity of Pt-based electrocatalysts for oxygen reduction via a selective Pt deposition process
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 유승호 | - |
dc.date.accessioned | 2022-04-11T15:44:36Z | - |
dc.date.available | 2022-04-11T15:44:36Z | - |
dc.date.created | 2022-04-08 | - |
dc.date.issued | 2011-11 | - |
dc.identifier.issn | 1572-6657 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/140035 | - |
dc.description.abstract | Carbon-supported Pt nanoparticles with various loading of Pt are prepared by a novel seed-mediated growth method using hydroquinone (HQ) assisted selective deposition. The structural and morphological dependence of the Pt nanoparticles on the catalytic activity in oxygen reduction reaction (ORR) is investigated. The analysis of core-level X-ray photoelectron spectroscopy (XPS) and X-ray absorption fine structure (XAFS) cannot elucidate the origin of the large enhancement of the ORR activity. In contrast, electrochemical measurements of the CO-displacement charge and the concomitant CO adlayer oxidation behavior prove that the selective deposition of additional Pt contributed to the decrease of surface defects and to the increase of the onset potential for OH adsorption. © 2011 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER B.V. | - |
dc.title | Enhanced activity of Pt-based electrocatalysts for oxygen reduction via a selective Pt deposition process | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | 유승호 | - |
dc.identifier.doi | 10.1016/j.jelechem.2011.03.023 | - |
dc.identifier.bibliographicCitation | JOURNAL OF ELECTROANALYTICAL CHEMISTRY, v.662, no.1, pp.70 - 79 | - |
dc.relation.isPartOf | JOURNAL OF ELECTROANALYTICAL CHEMISTRY | - |
dc.citation.title | JOURNAL OF ELECTROANALYTICAL CHEMISTRY | - |
dc.citation.volume | 662 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 70 | - |
dc.citation.endPage | 79 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Electrocatalyst | - |
dc.subject.keywordAuthor | Oxygen reduction reaction | - |
dc.subject.keywordAuthor | Pt nanoparticle | - |
dc.subject.keywordAuthor | Surface defect | - |
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