Journal
APPLIED CATALYSIS A-GENERAL
Volume 470, Issue -, Pages 442-450Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcata.2013.11.006
Keywords
Dichloromethane; CeOx-Al2O3; RuO2; Catalytic combustion; Chlorine
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Funding
- National Basic Research Program of China [2010CB732300, 2011AA03A406]
- National Natural Science Foundation of China [21277047]
- Commission of Science and Technology of Shanghai Municipality [11JC1402900]
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Ru oxide catalysts supported on Ce-Al2O3 with various Ce contents were prepared by wet impregnation with RuCl3 aqueous solution and characterized by XRD, N-2 adsorption, TEM/HRTEM, H-2-TPR, Raman and NH3-TPD. The catalytic combustion of dichloromethane (DCM) was investigated over the Ru/Ce-Al2O3 catalysts at first time. The Ru/Ce-Al2O3 catalysts present an outstanding catalytic activity. Ru/7%Ce-Al2O3 catalyst is most active, and DCM is converted completely at 270 degrees C. At 250 degrees C, the conversion of DCM over the Ru/Ce-Al2O3 catalysts with 3% or higher Ce contents keeps constant within 1000 h. High stable activity of the Ru/Ce-Al2O3 catalysts can be ascribed to the synergistic effect of acidity and high oxygen mobility. (C) 2013 Published by Elsevier B.V.
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