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College of Natural Sciences(자연과학대학)Dept. of Chemistry(화학과)CH-Journal Papers(저널논문)

Thermal wetting of platinum nanocrystals on silica surface

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dc.contributor.authorYu R.ko
dc.contributor.authorSong, Hyunjoonko
dc.contributor.authorZhang X.-F.ko
dc.contributor.authorYang P.ko
dc.date.accessioned2010-12-07T01:03:51Z-
dc.date.available2010-12-07T01:03:51Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2005-
dc.identifier.citationJOURNAL OF PHYSICAL CHEMISTRY B, v.109, no.15, pp.6940 - 6943-
dc.identifier.issn1520-6106-
dc.identifier.urihttp://hdl.handle.net/10203/20785-
dc.description.abstractThermal stability of facetted Pt nanocrystals on amorphous silica support films was investigated using in situ transmission electron microscopy in a temperature range between 25 and 800 degrees C. The particles started to change their shapes at similar to 350 degrees C. Above 500 degrees C, the particles spread on the support film with increasing temperature, rather than becoming more spherical. Such temperature-induced wetting of Pt nanoparticles on silica surface can be attributed to the interfacial mixing of Pt and SiO2 and the resulting negative interface energy.-
dc.description.sponsorshipThis work was supported by the Office of Basic Science, Department of Energy, and the Laboratory Directed Research and Development Program of Lawrence Berkeley National Laboratory under the Department of Energy Contract No. DE-AC03-76SF00098. We thank Prof. G. A. Somorjai for helpful discussion.en
dc.languageEnglish-
dc.language.isoen_USen
dc.publisherAMER CHEMICAL SOC-
dc.subjectCATALYSTS-
dc.subjectGOLD-
dc.subjectSTABILITY-
dc.subjectADHESION-
dc.titleThermal wetting of platinum nanocrystals on silica surface-
dc.typeArticle-
dc.identifier.wosid000228419100007-
dc.identifier.scopusid2-s2.0-18144427168-
dc.type.rimsART-
dc.citation.volume109-
dc.citation.issue15-
dc.citation.beginningpage6940-
dc.citation.endingpage6943-
dc.citation.publicationnameJOURNAL OF PHYSICAL CHEMISTRY B-
dc.identifier.doi10.1021/jp050973r-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorSong, Hyunjoon-
dc.contributor.nonIdAuthorYu R.-
dc.contributor.nonIdAuthorZhang X.-F.-
dc.contributor.nonIdAuthorYang P.-
dc.type.journalArticleLetter-
dc.subject.keywordPlusCATALYSTS-
dc.subject.keywordPlusGOLD-
dc.subject.keywordPlusSTABILITY-
dc.subject.keywordPlusADHESION-
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