Correlating 3D Surface Atomic Structure and Catalytic Activities of Pt Nanocrystals
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, S. | - |
dc.contributor.author | Kwag, J. | - |
dc.contributor.author | Machello, C. | - |
dc.contributor.author | Kang, S. | - |
dc.contributor.author | Heo, J. | - |
dc.contributor.author | Reboul, C.F. | - |
dc.contributor.author | Kang, D. | - |
dc.contributor.author | Kang, S. | - |
dc.contributor.author | Shim, S. | - |
dc.contributor.author | Park, S.-J. | - |
dc.contributor.author | 김병효 | - |
dc.contributor.author | Hyeon, T. | - |
dc.contributor.author | Ercius, P. | - |
dc.contributor.author | Elmlund, H. | - |
dc.contributor.author | Park, J. | - |
dc.date.available | 2021-03-15T06:40:19Z | - |
dc.date.created | 2021-03-15 | - |
dc.date.issued | 2021-01-27 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/40685 | - |
dc.description.abstract | Active sites and catalytic activity of heterogeneous catalysts is determined by their surface atomic structures. However, probing the surface structure at an atomic resolution is difficult, especially for solution ensembles of catalytic nanocrystals, which consist of heterogeneous particles with irregular shapes and surfaces. Here, we constructed 3D maps of the coordination number (CN) and generalized CN (CN_) for individual surface atoms of sub-3 nm Pt nanocrystals. Our results reveal that the synthesized Pt nanocrystals are enclosed by islands of atoms with nonuniform shapes that lead to complex surface structures, including a high ratio of low-coordination surface atoms, reduced domain size of low-index facets, and various types of exposed high-index facets. 3D maps of CN_ are directly correlated to catalytic activities assigned to individual surface atoms with distinct local coordination structures, which explains the origin of high catalytic performance of small Pt nanocrystals in important reactions such as oxygen reduction reactions and CO electro-oxidation. © 2021 American Chemical Society. All rights reserved. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | American Chemical Society | - |
dc.relation.isPartOf | Nano Letters | - |
dc.title | Correlating 3D Surface Atomic Structure and Catalytic Activities of Pt Nanocrystals | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.nanolett.0c04873 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Nano Letters, v.21, no.2, pp.1175 - 1183 | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000614066800040 | - |
dc.identifier.scopusid | 2-s2.0-85099646765 | - |
dc.citation.endPage | 1183 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 1175 | - |
dc.citation.title | Nano Letters | - |
dc.citation.volume | 21 | - |
dc.contributor.affiliatedAuthor | 김병효 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordAuthor | 3D atomic structure | - |
dc.subject.keywordAuthor | 3D coordination map | - |
dc.subject.keywordAuthor | Nanocrystal imaging | - |
dc.subject.keywordAuthor | Structure-catalytic activity relationship | - |
dc.subject.keywordAuthor | Surface atomic structure | - |
dc.subject.keywordAuthor | Surface coordination number | - |
dc.subject.keywordPlus | Atoms | - |
dc.subject.keywordPlus | Catalytic oxidation | - |
dc.subject.keywordPlus | Coordination reactions | - |
dc.subject.keywordPlus | Electrolytic reduction | - |
dc.subject.keywordPlus | Electrooxidation | - |
dc.subject.keywordPlus | Lead compounds | - |
dc.subject.keywordPlus | Nanocrystals | - |
dc.subject.keywordPlus | Platinum | - |
dc.subject.keywordPlus | Surface structure | - |
dc.subject.keywordPlus | Atomic resolution | - |
dc.subject.keywordPlus | CO electrooxidation | - |
dc.subject.keywordPlus | Coordination number | - |
dc.subject.keywordPlus | Heterogeneous catalyst | - |
dc.subject.keywordPlus | Heterogeneous particles | - |
dc.subject.keywordPlus | High catalytic performance | - |
dc.subject.keywordPlus | Local coordination structures | - |
dc.subject.keywordPlus | Surface atomic structure | - |
dc.subject.keywordPlus | Catalyst activity | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
Soongsil University Library 369 Sangdo-Ro, Dongjak-Gu, Seoul, Korea (06978)02-820-0733
COPYRIGHT ⓒ SOONGSIL UNIVERSITY, ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.