Effect of Gold Loading on Ceria-Zirconia Support in Total Oxidation of VOCs.

0503742 - ÚCHP 2020 RIV NL eng J - Journal Article
Gaálová, Jana - Topka, Pavel - Kaluža, Luděk - Soukup, Karel - Barbier Jr., J.
Effect of Gold Loading on Ceria-Zirconia Support in Total Oxidation of VOCs.
Catalysis Today. Roč. 333, 1 August (2019), s. 190-195. ISSN 0920-5861. E-ISSN 1873-4308
Institutional support: RVO:67985858
Keywords : gold * ceria-zirconia mixed oxide * volatile organic compounds
Subject RIV: CI - Industrial Chemistry, Chemical Engineering
OBOR OECD: Chemical process engineering
Impact factor: 5.825, year: 2019
http://hdl.handle.net/11104/0296867

0.20, 0.37, 0.83, 1.55 and 3.35 wt.% of gold was impregnated on Ce0.5Zr0.5O2 prepared by sol-gel method. Systematic characterizations of gold catalysts by atomic emission spectroscopy, N2 physisorption, X-ray powder diffraction, H2 chemisorption, transmission electron microscopy, temperature programmed reduction by hydrogen and measurement of oxygen storage capacity allowed detailed monitoring of their characteristics. Subsequently, the catalytic performance and selectivity in the oxidation of selected volatile organic compounds (VOCs) was studied and linked to the physicochemical properties. The study revealed that depending on VOC type, an improvement in catalytic performance with increasing gold loading can be observed despite of gold sintering to large agglomerates during the preparation of catalysts.
Permanent Link: http://hdl.handle.net/11104/0296867