Oxidation of Dichloromethane over Pt and Au Impregnated on Extracted and Calcined TiO2-ZrO2 Supports

0345363 - ÚCHP 2011 RIV FI eng C - Conference Paper (international conference)
Matějová, Lenka - Pitkäaho, S. - Ojala, S. - Cajthaml, Tomáš - Keiski, R.L. - Šolcová, Olga
Oxidation of Dichloromethane over Pt and Au Impregnated on Extracted and Calcined TiO2-ZrO2 Supports.
Proceedings. Oulu: University of Oulu, 2010 - (Pongrácz, E.; Hyvärinen, M.), s. 66-69. ISBN 978-951-42-6199-2.
[Clean Air Research at the University of Oulu. Oulu (FI), 03.06.2010]
R&D Projects: GA ČR GP104/09/P290; GA ČR GA104/09/0694
Institutional research plan: CEZ:AV0Z40720504; CEZ:AV0Z50200510
Keywords : CVOC oxidation * oxidic catalysts * extraction
Subject RIV: CF - Physical ; Theoretical Chemistry

In this study the definite correlation between textural and structural properties and catalytic performances of platinum- and gold-impregnated TiO2-ZrO2 catalysts in DCM total oxidation has been found. Textural properties, micro/mesoporosity, dispersion of noble metal particles, structural properties and morphology of four laboratory and one commercial catalysts were characterized by nitrogen physisorption at 77, chemisorption, XRD, SEM, TPR and TPD techniques. Besides the initial light-off tests carried out over all the catalysts at high WHSV of 150 dm3gcat-1h-1 also the effect of various WHSV on the catalytic activity and selectivity of platinum and gold-impregnated and calcined TiO2-ZrO2 catalysts was investigated. The durability of all tested catalysts was also studied.
Permanent Link: http://hdl.handle.net/11104/0186651