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Kwak, Ja Hun
Molecular Catalysis lab
Research Interests
  • Heterogeneous catalysis, molecular catalysis, ASlumima, zeolites

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Synthesis, characterization, and catalytic function of novel highly dispersed tungsten oxide catalysts on inesoporous silica

DC Field Value Language
dc.contributor.author Herrera, JE ko
dc.contributor.author Kwak, Jahun ko
dc.contributor.author Hu, JZ ko
dc.contributor.author Wang, Y ko
dc.contributor.author Peden, CHF ko
dc.contributor.author Macht, J ko
dc.contributor.author Iglesia, E ko
dc.date.available 2015-07-23T02:13:59Z -
dc.date.created 2015-07-21 ko
dc.date.issued 2006-04 -
dc.identifier.citation JOURNAL OF CATALYSIS, v.239, no.1, pp.200 - 211 ko
dc.identifier.issn 0021-9517 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/12433 -
dc.identifier.uri http://www.sciencedirect.com/science/article/pii/S002195170600042X ko
dc.description.abstract The physical and chemical properties of tungsten oxide supported on SBA-15 rnesoporous silica prepared by a controlled grafting process through atomic layer deposition (ALD) were studied using complementary characterization methods. X-ray diffraction, optical absorption, and transmission electron microscopy showed that tungsten oxide species are highly dispersed on SBA-15 surfaces, even at 30 wt% WO, content (surface density, 1.33 WOx/nm(2)). ALD methods led to samples with much better thermal stability than those prepared via impregnation. Dehydration reactions of 2-butanol and methanol dehydration were used as probe reactions. Differences in reaction rates between the samples prepared by ALD and conventional impregnation may reflect the sintering resistance of catalysts prepared by ALD. Notably, temperature-programmed oxidation of spent catalysts showed that carbon formation was not responsible for the different dehydration rates in samples prepared by ALD and impregnation. (c) 2006 Elsevier Inc. All rights reserved ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher ACADEMIC PRESS INC ELSEVIER SCIENCE ko
dc.subject tungsten oxide ko
dc.subject SBA-15 ko
dc.subject methanol dehydration ko
dc.subject 2-butanol dehydration ko
dc.subject DRS UV-vis ko
dc.subject TEM ko
dc.subject H-1 NMR ko
dc.subject XRD ko
dc.subject TPO ko
dc.title Synthesis, characterization, and catalytic function of novel highly dispersed tungsten oxide catalysts on inesoporous silica ko
dc.title.alternative Synthesis, characterization, and catalytic function of novel highly dispersed tungsten oxide catalysts on inesoporous silica ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-33644864857 ko
dc.identifier.wosid 000236419800020 ko
dc.type.rims ART ko
dc.description.wostc 77 *
dc.description.scopustc 81 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1016/j.jcat.2006.01.034 ko
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