| Title: | "Oxidation of Methanol and Dichloromethane on TiO(2)-CeO(2)-CuO, TiO(2)-CeO(2) and TiO(2)-CuO@VUKOPOR((R))A Ceramic Foams" |
| Author(s): | Matejova L; Troppova I; Pitkaaho S; Pacultova K; Fridrichova D; Kania O; Keiski R; |
| Address: | "Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic. Environmental and Chemical Engineering, Faculty of Technology, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland. Elvac Ekotechnika s.r.o, Tavicska 337/23, 703 00 Ostrava-Vitkovice, Czech Republic" |
| ISSN/ISBN: | 2079-4991 (Print) 2079-4991 (Electronic) 2079-4991 (Linking) |
| Abstract: | "The application-attractive form of TiO(2), CeO(2) and CuO-based open-cell foam supported catalysts was designed to investigate their catalytic performance in oxidation of two model volatile organic compounds-methanol and dichloromethane. TiO(2)-CeO(2), TiO(2)-CuO and TiO(2)-CeO(2)-CuO catalysts as thin films were deposited on VUKOPOR((R))A ceramic foam using a reverse micelles-controlled sol-gel method, dip-coating and calcination. Three prepared catalytic foams were investigated via light-off tests in methanol and dichloromethane oxidation in the temperature range of 45-400 degrees C and 100-500 degrees C, respectively, at GHSV of 11, 600 h(-1), which fits to semi-pilot/industrial conditions. TiO(2)-CuO@VUKOPOR((R))A foam showed the best catalytic activity and CO(2) yield in methanol oxidation due to its low weak Lewis acidity, high weak basicity and easily reducible CuO species and proved good catalytic stability within 20 h test. TiO(2)-CeO(2)-CuO@VUKOPOR((R))A foam was the best in dichloromethane oxidation. Despite of its lower catalytic activity compared to TiO(2)-CeO(2)@VUKOPOR((R))A foam, its highly-reducible -O-Cu-Ce-O- active surface sites led to the highest CO(2) yield and the highest weak Lewis acidity contributed to the highest HCl yield. This foam also showed the lowest amount of chlorine deposits" |
| Keywords: | VUKOPOR(R)A ceramic foam catalytic oxidation ceria copper oxide dichloromethane methanol mixed oxide catalyst titania volatile organic compounds; |
| Notes: | "PubMed-not-MEDLINEMatejova, Lenka Troppova, Ivana Pitkaaho, Satu Pacultova, Katerina Fridrichova, Dagmar Kania, Ondrej Keiski, Riitta eng LM2018098/Ministry of Education, Youth and Sports of the Czech Republic/ CZ.02.1.01./0.0/0.0/17_049/0008419/ERDF/ Switzerland 2023/04/14 Nanomaterials (Basel). 2023 Mar 23; 13(7):1148. doi: 10.3390/nano13071148" |
