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dc.contributor.authorGercher, Victoria A.en_US
dc.date.accessioned2014-03-14T21:09:55Z
dc.date.available2014-03-14T21:09:55Z
dc.date.issued1994-08-05en_US
dc.identifier.otheretd-03022006-093407en_US
dc.identifier.urihttp://hdl.handle.net/10919/37451
dc.description.abstract

The adsorption of a number of Brà nsted acids of differing strengths has been studied on stoichiometric and defective Sn02(110) surfaces. The extent of dissociation of these acids depends on the surface composition and the strength of the acid. Two crystallographically inequivalent types of oxygen vacancies can be introduced onto SnO02 (110) surfaces, and the kinetics of the reactions of Brà nsted acids is influenced by the number and type of oxygen vacancies present on each surface. The site requirement for dissociation of Brà nsted acids has been described as a coordinatively unsaturated cation and an available anion. On the Sn002( 110) surfaces studied, this site requirement was seen to be a necessary but not sufficient condition for dissociation. In contradiction to the generally accepted idea that the presence of defects increases reactivity, the most defective SnO2 (110) surface considered showed the lowest activity for dissociation for all adsorbates studied.

en_US
dc.format.mediumBTDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartLD5655.V856_1994.G473.pdfen_US
dc.subjectOxidation.en_US
dc.subjectStannic oxideen_US
dc.subject.lccLD5655.V856 1994.G473en_US
dc.titleInfluence of oxygen vacancies on oxygenate reactions over SnO2(110) single crystal surfacesen_US
dc.typeDissertationen_US
dc.contributor.departmentChemical Engineeringen_US
dc.description.degreePh. D.en_US
thesis.degree.namePh. D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineChemical Engineeringen_US
dc.contributor.committeechairCox, David F.en_US
dc.contributor.committeememberDavis, Richey M.en_US
dc.contributor.committeememberDillard, John G.en_US
dc.contributor.committeememberAnderson, Mark R.en_US
dc.contributor.committeememberHanson, Brian E.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-03022006-093407/en_US
dc.date.sdate2006-03-02en_US
dc.date.rdate2006-03-02
dc.date.adate2006-03-02en_US


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