DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Cheonghee | ko |
dc.contributor.author | Lee, Hyunjoo | ko |
dc.date.accessioned | 2015-11-20T12:54:26Z | - |
dc.date.available | 2015-11-20T12:54:26Z | - |
dc.date.created | 2014-03-10 | - |
dc.date.created | 2014-03-10 | - |
dc.date.issued | 2009-04 | - |
dc.identifier.citation | CATALYSIS COMMUNICATIONS, v.10, no.9, pp.1305 - 1309 | - |
dc.identifier.issn | 1566-7367 | - |
dc.identifier.uri | http://hdl.handle.net/10203/201765 | - |
dc.description.abstract | Polyvinylpyrrolidone (PVP; MW 55,000)-capped and tetradecyltrimethylammonium bromide (TTAB; MW 336)-capped Pt nanoparticles were synthesized with the same cubic shape and similar particle size (8.1 vs. 8.6 nm, respectively). These Pt nanocubes were used as catalysts for reactions of H(+), C(2)H(4), C(6)H(6), and O(2)NC(6)H(4)OH on the Pt surface. With increasing molecular size of the reactants (H(+) < C(2)H(4) < C(6)H(6)), the ratio of the catalytic activity of TTAB- to PVP-capped nanocubes shows a dramatic increase because TTAB with short alkyl chains provides a larger number of clean Pt atom ensembles for larger reactants. However, similar activity between the two types of nanocubes was measured for a solution-phase reaction (O(2)NC(6)H(4)OH) where the surface-capping agents are able to spread out into solvent media, exposing bare Pt atoms. In this case, the influence of the alkyl length of the surface-capping agent was minimized. (C) 2009 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | SELECTIVE HYDROGENATION | - |
dc.subject | PLATINUM NANOPARTICLES | - |
dc.subject | SINGLE-CRYSTAL | - |
dc.subject | NANOCRYSTALS | - |
dc.subject | CINNAMALDEHYDE | - |
dc.subject | OXIDATION | - |
dc.subject | PALLADIUM | - |
dc.subject | NANORODS | - |
dc.subject | GROWTH | - |
dc.title | Change in the catalytic reactivity of Pt nanocubes in the presence of different surface-capping agents | - |
dc.type | Article | - |
dc.identifier.wosid | 000265040800007 | - |
dc.identifier.scopusid | 2-s2.0-63749115393 | - |
dc.type.rims | ART | - |
dc.citation.volume | 10 | - |
dc.citation.issue | 9 | - |
dc.citation.beginningpage | 1305 | - |
dc.citation.endingpage | 1309 | - |
dc.citation.publicationname | CATALYSIS COMMUNICATIONS | - |
dc.identifier.doi | 10.1016/j.catcom.2009.02.013 | - |
dc.contributor.localauthor | Lee, Hyunjoo | - |
dc.contributor.nonIdAuthor | Kim, Cheonghee | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Pt nanocubes | - |
dc.subject.keywordAuthor | Shape control | - |
dc.subject.keywordAuthor | Surface-capping agent | - |
dc.subject.keywordAuthor | Reactivity | - |
dc.subject.keywordPlus | SELECTIVE HYDROGENATION | - |
dc.subject.keywordPlus | PLATINUM NANOPARTICLES | - |
dc.subject.keywordPlus | SINGLE-CRYSTAL | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | CINNAMALDEHYDE | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | PALLADIUM | - |
dc.subject.keywordPlus | NANORODS | - |
dc.subject.keywordPlus | GROWTH | - |
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