DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hong, Jong Wook | ko |
dc.contributor.author | Kang, Shin-Wook | ko |
dc.contributor.author | Choi, Buseo | ko |
dc.contributor.author | Kim, Dongheun | ko |
dc.contributor.author | Lee, Sang Bok | ko |
dc.contributor.author | Han, Sang Woo | ko |
dc.date.accessioned | 2013-03-13T06:12:25Z | - |
dc.date.available | 2013-03-13T06:12:25Z | - |
dc.date.created | 2012-10-09 | - |
dc.date.created | 2012-10-09 | - |
dc.date.created | 2012-10-09 | - |
dc.date.issued | 2012-03 | - |
dc.identifier.citation | ACS NANO, v.6, no.3, pp.2410 - 2419 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.uri | http://hdl.handle.net/10203/104619 | - |
dc.description.abstract | Pd-Pt alloy nanocrystals (NCs) with hollow structures such as nanocages with porous walls and dendritic hollow structures and Pd@Pt core-shell dendritic NCs could be selectively synthesized by a galvanic replacement method with uniform Pd octahedral and cubic NCs as sacrificial templates. Fine control over the degree of galvanic replacement of Pd with Pt allowed the production of Pd-Pt NCs with distinctly different morphologies. The synthesized hollow NCs exhibited considerably enhanced oxygen reduction activities compared to those of Pd@Pt core-shell NCs and a commercial Pt/C catalyst, and their electrocatalytic activities were highly dependent on their morphologies. The Pd-Pt nanocages prepared from octahedral Pd NC templates exhibited the largest improvement in catalytic performance. We expect that the present work will provide a promising strategy for the development of efficient oxygen reduction electrocatalysts and can also be extended to the preparation of other hybrid or hetero-nanostructures with desirable morphologies and functions. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Controlled Synthesis of Pd-Pt Alloy Hollow Nanostructures with Enhanced Catalytic Activities for Oxygen Reduction | - |
dc.type | Article | - |
dc.identifier.wosid | 000301945900056 | - |
dc.identifier.scopusid | 2-s2.0-84859139634 | - |
dc.type.rims | ART | - |
dc.citation.volume | 6 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 2410 | - |
dc.citation.endingpage | 2419 | - |
dc.citation.publicationname | ACS NANO | - |
dc.identifier.doi | 10.1021/nn2046828 | - |
dc.contributor.localauthor | Han, Sang Woo | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | electrocatalysis | - |
dc.subject.keywordAuthor | hollow nanocrystals | - |
dc.subject.keywordAuthor | oxygen reduction | - |
dc.subject.keywordAuthor | palladium | - |
dc.subject.keywordAuthor | platinum | - |
dc.subject.keywordPlus | SHAPE-CONTROLLED SYNTHESIS | - |
dc.subject.keywordPlus | PLATINUM-MONOLAYER SHELL | - |
dc.subject.keywordPlus | ELECTROCATALYTIC ACTIVITY | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | NANODENDRITES | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | NANOTUBES | - |
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