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Content Provider | Springer Nature Link |
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Author | Liberman, E. Yu. Kleusov, B. S. Mikhailichenko, A. I. Kon’kova, T. V. Khoroshilov, A. V. |
Copyright Year | 2012 |
Abstract | The nanostructured solid solution Mn$_{0.5}$Ce$_{0.5}$O$_{2}$ is synthesized to develop effective noble metal free catalysts for the detoxification of technogenic contaminants. Its chemical and phase compositions and textural characteristics are studied by differential thermal analysis, X-ray diffraction analysis, laser mass spectrometry, and low-temperature nitrogen adsorption. The activity of the solid solution in the oxidation of carbon monoxide is determined by the flow method within a temperature range of 20–300°C at atmospheric pressure, a gas hourly space velocity of 1800 h$^{−1}$ for the following gas mixture composition, vol %: CO, 3.6; O$_{2}$, 8.0; N$_{2}$, balance. The activity of Mn$_{0.5}$Ce$_{0.5}$O$_{2}$ is shown to be appreciably higher than the activity of MnO$_{x}$ and CeO$_{2}$, and the temperature of 100% conversion is 92, 120, and 210°C, respectively. Using the solid solution as a support and the technique of impregnation, we synthesize the nanostructured catalysts Cu/Mn$_{0.5}$Ce$_{0.5}$O$_{2}$ and Ag/Mn$_{0.5}$Ce$_{0.5}$O$_{2}$, which manifest high activity in the oxidation of carbon monoxide: the temperature of 100% conversion is 77 and 85°C, respectively. The new catalysts could be of interest for the purification of industrial and motor vehicle wastes. |
Starting Page | 186 |
Ending Page | 190 |
Page Count | 5 |
File Format | |
ISSN | 20700504 |
Journal | Catalysis in Industry |
Volume Number | 4 |
Issue Number | 3 |
e-ISSN | 20700555 |
Language | English |
Publisher | SP MAIK Nauka/Interperiodica |
Publisher Date | 2012-09-15 |
Publisher Place | Dordrecht |
Access Restriction | One Nation One Subscription (ONOS) |
Subject Keyword | cerium dioxide manganese oxide solid solution CO oxidation Catalysis |
Content Type | Text |
Resource Type | Article |
Subject | Catalysis |
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