DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ahn, Hojin | ko |
dc.contributor.author | Ahn, Hochan | ko |
dc.contributor.author | An, Jihun | ko |
dc.contributor.author | Kim, Hyungjun | ko |
dc.contributor.author | Hong, Jong Wook | ko |
dc.contributor.author | Han, Sang Woo | ko |
dc.date.accessioned | 2022-12-08T01:00:47Z | - |
dc.date.available | 2022-12-08T01:00:47Z | - |
dc.date.created | 2022-11-28 | - |
dc.date.created | 2022-11-28 | - |
dc.date.issued | 2022-11 | - |
dc.identifier.citation | NANO LETTERS, v.22, no.22, pp.9115 - 9121 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | http://hdl.handle.net/10203/302043 | - |
dc.description.abstract | We have developed a synthesis method of rhombic dodecahedral Pd@Pt core-shell nanocrystals bound exclusively by {110} facets with controlled numbers of Pt atomic layers to study the surface strain-catalytic activity relationship of Pt{110} facets. Through control over growth kinetics, the epitaxial and conformal overgrowth of Pt shells on the {110} facets of rhombic dodecahedral Pd nanocrystals could be achieved. Notably, the electrocatalytic activity of the Pd@Pt nanocrystals toward oxygen reduction reaction decreased as their Pt shells became thinner and thus more in-plane compressive surface strain was applied, which is in sharp contrast to previous reports on Pt-based catalysts. Density functional theory calculations revealed that the characteristic strain-activity relationship of Pt{110} facets is the result of the counteraction of out-of-plane surface strain against the applied in plane surface strain, which can effectively impose a tensile environment on the surface atoms of the Pd@Pt nanocrystals under the compressive in-plane strain. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Role of Surface Strain at Nanocrystalline Pt{110} Facets in Oxygen Reduction Catalysis | - |
dc.type | Article | - |
dc.identifier.wosid | 000884849900001 | - |
dc.identifier.scopusid | 2-s2.0-85141999660 | - |
dc.type.rims | ART | - |
dc.citation.volume | 22 | - |
dc.citation.issue | 22 | - |
dc.citation.beginningpage | 9115 | - |
dc.citation.endingpage | 9121 | - |
dc.citation.publicationname | NANO LETTERS | - |
dc.identifier.doi | 10.1021/acs.nanolett.2c03611 | - |
dc.contributor.localauthor | Kim, Hyungjun | - |
dc.contributor.localauthor | Han, Sang Woo | - |
dc.contributor.nonIdAuthor | Hong, Jong Wook | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | platinum | - |
dc.subject.keywordAuthor | palladium | - |
dc.subject.keywordAuthor | core-shell nanocrystals | - |
dc.subject.keywordAuthor | surface strain | - |
dc.subject.keywordAuthor | ORR | - |
dc.subject.keywordPlus | SINGLE-CRYSTAL SURFACES | - |
dc.subject.keywordPlus | BY-LAYER DEPOSITION | - |
dc.subject.keywordPlus | ENHANCED ACTIVITY | - |
dc.subject.keywordPlus | PLATINUM | - |
dc.subject.keywordPlus | PD | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | LATTICE | - |
dc.subject.keywordPlus | ELECTROCATALYSIS | - |
dc.subject.keywordPlus | NANOWIRES | - |
dc.subject.keywordPlus | OCTAHEDRA | - |
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