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College of Engineering(공과대학)Graduate school of EEWS(EEWS대학원)EEW-Journal Papers(저널논문)

Size Effect of Ruthenium Nanoparticles in Catalytic Carbon Monoxide Oxidation

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dc.contributor.authorJoo, Sang Hoonko
dc.contributor.authorPark, JeongYoungko
dc.contributor.authorRenzas, J. Russellko
dc.contributor.authorButcher, Derek R.ko
dc.contributor.authorHuang, Wenyuko
dc.contributor.authorSomorjai, Gabor A.ko
dc.date.accessioned2010-12-02T08:52:24Z-
dc.date.available2010-12-02T08:52:24Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2010-07-
dc.identifier.citationNANO LETTERS, v.10, no.7, pp.2709 - 2713-
dc.identifier.issn1530-6984-
dc.identifier.urihttp://hdl.handle.net/10203/20668-
dc.description.abstractCarbon monoxide oxidation over ruthenium catalysts has shown an unusual catalytic behavior Here we report a particle size effect on CO oxidation over Ru nanoparticle (NP) catalysts Uniform Ru NPs with a tunable particle size from 2 to 6 nm were synthesized by a polyol reduction of Ru(acac)(3) precursor in the presence of poly(vinylpyrrolidone) stabilizer The measurement of catalytic activity of CO oxidation over two-dimensional Ru NPs arrays under oxidizing reaction conditions (40 Torr CO and 100 Torr O(2)) showed an activity dependence on the Ru NP size The CO oxidation activity increases with NP size, and the 6 nm Ru NP catalyst shows 8-fold higher activity than the 2 nm catalysts The results gained from this study will provide the scientific basis for future design of Ru-based oxidation catalysts-
dc.description.sponsorshipThis work was supported by the Director, Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy under Contract No. DE-AC02- 05CH11231. J.Y.P. acknowledges the support by WCU (World Class University) program through the National Research Foundation of Korea funded by the Ministry of Education, Science, and Technology (31-2008-000-10055- 0). Authors thank the Berkeley Electron Microscopy Lab for the use of TEM machine, and also thank Professor A. Paul Alivisatos for use of XRD diffractometer.en
dc.languageEnglish-
dc.language.isoen_USen
dc.publisherAMER CHEMICAL SOC-
dc.subjectCO OXIDATION-
dc.subjectIN-SITU-
dc.subjectATOMIC-SCALE-
dc.subjectSTEADY-STATE-
dc.subjectPLATINUM-
dc.subjectSHAPE-
dc.subjectNANOCRYSTALS-
dc.subjectSPECTROSCOPY-
dc.subjectKINETICS-
dc.subjectMETALS-
dc.titleSize Effect of Ruthenium Nanoparticles in Catalytic Carbon Monoxide Oxidation-
dc.typeArticle-
dc.identifier.wosid000280416200069-
dc.identifier.scopusid2-s2.0-77955327824-
dc.type.rimsART-
dc.citation.volume10-
dc.citation.issue7-
dc.citation.beginningpage2709-
dc.citation.endingpage2713-
dc.citation.publicationnameNANO LETTERS-
dc.identifier.doi10.1021/nl101700j-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorPark, JeongYoung-
dc.contributor.nonIdAuthorJoo, Sang Hoon-
dc.contributor.nonIdAuthorRenzas, J. Russell-
dc.contributor.nonIdAuthorButcher, Derek R.-
dc.contributor.nonIdAuthorHuang, Wenyu-
dc.contributor.nonIdAuthorSomorjai, Gabor A.-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorRuthenium-
dc.subject.keywordAuthornanoparticles-
dc.subject.keywordAuthormodel nanocatalyst-
dc.subject.keywordAuthorCO oxidation-
dc.subject.keywordAuthorsize effect-
dc.subject.keywordPlusCO OXIDATION-
dc.subject.keywordPlusIN-SITU-
dc.subject.keywordPlusATOMIC-SCALE-
dc.subject.keywordPlusSTEADY-STATE-
dc.subject.keywordPlusPLATINUM-
dc.subject.keywordPlusSHAPE-
dc.subject.keywordPlusNANOCRYSTALS-
dc.subject.keywordPlusSPECTROSCOPY-
dc.subject.keywordPlusKINETICS-
dc.subject.keywordPlusMETALS-
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