Preparation and characterization by electrophoretic migration of TiO2—Al2O3 catalytic supports

作者: F.J. Gil Lliambas , L. Bouyssieres , A. López Agudo

DOI: 10.1016/S0166-9834(00)81587-0

关键词: ElectrophoresisCatalyst supportDispersion (chemistry)Zeta potentialIsoelectric pointChemical vapor depositionChemistryTitaniumCatalysisInorganic chemistry

摘要: Abstract The dispersion of TiO2 on γ-Al2O3 in two series TiO2–Al2O3 binary oxides prepared by vapour deposition and liquid-phase impregnation TiCl4 was studied using electrophoretic migration measurements the isoelectric point. Vapour-deposited titania found to be highly dispersed, forming monolayers alumina surface at loadings below 7 wt.-% titanium; formation multilayers occurred titanium greater than wt.-%. Liquid-phase produced lower coverage multilayers.

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