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

Enhanced catalytic activity of air-calcined fluorination catalyst

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dc.contributor.authorChung, YSko
dc.contributor.authorLee, Hko
dc.contributor.authorJeong, HDko
dc.contributor.authorKim, YKko
dc.contributor.authorLee, HGko
dc.contributor.authorKim, HSko
dc.contributor.authorKim, Sehunko
dc.date.accessioned2009-09-21T06:57:39Z-
dc.date.available2009-09-21T06:57:39Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued1998-04-
dc.identifier.citationJOURNAL OF CATALYSIS, v.175, no.2, pp.220 - 225-
dc.identifier.issn0021-9517-
dc.identifier.urihttp://hdl.handle.net/10203/11389-
dc.description.abstractThe catalytic activity of the air-calcined catalyst of CrF3 . 4H(2)O for the fluorination reaction of CF3CH2Cl was found to be 20 times higher than that of CrF3 . 4H(2)O. Photoacoustic spectroscopy measurements and XPS revealed the existence of various chromium phases and an increased density-of-states near the Fermi energy level in this catalyst. The increased catalytic activity of the air-calcined sample is attributed to the relatively easier formation of labile fluorine on the catalyst surface due to the stronger interaction between the valence band of CrOxFy and the antibonding orbitals of HF. (C) 1998 Academic Press.-
dc.description.sponsorshipThis work was supported in part by the Center of Molecular Science and theKorea Institute of Science and Technology.en
dc.languageEnglish-
dc.language.isoen_USen
dc.publisherACADEMIC PRESS INC-
dc.subjectX-RAY PHOTOELECTRON-
dc.subjectAMBIENT-TEMPERATURE-
dc.subjectHYDROGEN-FLUORIDE-
dc.subjectCHROMIA-
dc.subject1,1,1-TRICHLOROETHANE-
dc.subjectEXCHANGE-
dc.subjectALUMINA-
dc.subjectCR-
dc.titleEnhanced catalytic activity of air-calcined fluorination catalyst-
dc.typeArticle-
dc.identifier.wosid000073632300010-
dc.identifier.scopusid2-s2.0-0001686647-
dc.type.rimsART-
dc.citation.volume175-
dc.citation.issue2-
dc.citation.beginningpage220-
dc.citation.endingpage225-
dc.citation.publicationnameJOURNAL OF CATALYSIS-
dc.identifier.doi10.1006/jcat.1998.2016-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorKim, Sehun-
dc.contributor.nonIdAuthorChung, YS-
dc.contributor.nonIdAuthorLee, H-
dc.contributor.nonIdAuthorJeong, HD-
dc.contributor.nonIdAuthorKim, YK-
dc.contributor.nonIdAuthorLee, HG-
dc.contributor.nonIdAuthorKim, HS-
dc.type.journalArticleArticle-
dc.subject.keywordPlusX-RAY PHOTOELECTRON-
dc.subject.keywordPlusAMBIENT-TEMPERATURE-
dc.subject.keywordPlusHYDROGEN-FLUORIDE-
dc.subject.keywordPlusCHROMIA-
dc.subject.keywordPlus1,1,1-TRICHLOROETHANE-
dc.subject.keywordPlusEXCHANGE-
dc.subject.keywordPlusALUMINA-
dc.subject.keywordPlusCR-
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