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나노물질및화학반응연구단
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Synthesis of High Surface Area TiO2 Aerogel Support with Pt Nanoparticle Catalyst and CO Oxidation Study

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dc.contributor.authorHanseul Choi-
dc.contributor.authorMichele Carboni-
dc.contributor.authorYou Kyung Kim-
dc.contributor.authorChan Ho Jung-
dc.contributor.authorSong Yi Moon-
dc.contributor.authorMatthias M. Koebel-
dc.contributor.authorJeong Young Park-
dc.date.available2019-09-25T07:26:04Z-
dc.date.created2019-06-19-
dc.date.issued2018-05-
dc.identifier.issn1011-372X-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/6195-
dc.description.abstractWe demonstrate the preparation and catalytic testing of nanocatalysts composed of TiO2 synthesized in aerogel using a supercritical drying process with Pt nanoparticles deposited on the mesopore oxide surface. By controlling the aging time, we found conditions that led to TiO2 with a surface area among the highest ever reported for a TiO2 material in aerogel form (similar to 685 m(2) g(- 1)). The chosen synthesis route also features good control over the pore volume and pore size. Even though our aerogel TiO2 support showed an amorphous structure before calcination, 90.2% anatase and 9.8% rutile phases co-existed after calcination at 500 A degrees C for 2 h with an average particle size of about 17 nm based on XRD results. The as-synthesized TiO2 and Pt/TiO2 were both used as catalysts for the CO oxidation reaction. Uncalcined Pt/TiO2 showed 100% conversion at 300 A degrees C. After calcination, Pt/TiO2 exhibited a significantly higher catalytic activity, showing 100% conversion at 125 A degrees C and an activation energy of only 13.4 kcal mol(- 1). We show that TiO2 synthesized by the aerogel method can be an excellent support material for nanocatalysis because of its high surface area and facile and scalable synthesis. © Springer Science+Business Media, LLC, part of Springer Nature 2018-
dc.description.uri1-
dc.language영어-
dc.publisherSPRINGER-
dc.subjectAerogel-
dc.subjectTiO2-
dc.subjectPt nanoparticle-
dc.subjectHeterogeneous catalyst-
dc.subjectCO oxidation-
dc.titleSynthesis of High Surface Area TiO2 Aerogel Support with Pt Nanoparticle Catalyst and CO Oxidation Study-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000430722800027-
dc.identifier.scopusid2-s2.0-85044204593-
dc.identifier.rimsid68741-
dc.contributor.affiliatedAuthorHanseul Choi-
dc.contributor.affiliatedAuthorChan Ho Jung-
dc.contributor.affiliatedAuthorSong Yi Moon-
dc.contributor.affiliatedAuthorJeong Young Park-
dc.identifier.doi10.1007/s10562-018-2355-y-
dc.identifier.bibliographicCitationCATALYSIS LETTERS, v.148, no.5, pp.1504 - 1513-
dc.citation.titleCATALYSIS LETTERS-
dc.citation.volume148-
dc.citation.number5-
dc.citation.startPage1504-
dc.citation.endPage1513-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusSENSITIZED SOLAR-CELLS-
dc.subject.keywordPlusANATASE TIO2-
dc.subject.keywordPlusMESOPOROUS TIO2-
dc.subject.keywordPlusPARTICLE-SIZE-
dc.subject.keywordPlusPHOTOCATALYTIC ACTIVITY-
dc.subject.keywordPlusSTRUCTURAL-PROPERTIES-
dc.subject.keywordPlusPT/TIO2 CATALYSTS-
dc.subject.keywordPlusTITANIUM-DIOXIDE-
dc.subject.keywordPlusPLATINUM-
dc.subject.keywordPlusNANOCATALYSTS-
dc.subject.keywordAuthorAerogel-
dc.subject.keywordAuthorTiO2-
dc.subject.keywordAuthorPt nanoparticle-
dc.subject.keywordAuthorHeterogeneous catalyst-
dc.subject.keywordAuthorCO oxidation-
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > 1. Journal Papers (저널논문)
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