Journal
CATALYSIS SCIENCE & TECHNOLOGY
Volume 3, Issue 3, Pages 730-736Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cy20641b
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- Council of Scientific & Industrial Research (CSIR), New Delhi
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A series of NiO/CeO2 catalysts were prepared by using the combustion method and characterized by using XRD, N-2-physisorption, TEM, UV-visible, Raman, XPS, ICP-OES and H-2-TPR. Typical results indicated the NiO/CeO2 had a better performance than CeO2 for CO oxidation and 15 wt% NiO/CeO2 is active and stable, whereas catalysts with a higher NiO content of 20 and 30 wt% deactivated at 130 degrees C onwards. The high activity and excellent stability of 15% NiO/CeO2 catalysts can be ascribed to their high oxygen vacancy, high dispersion of NiO and strong metal-support interaction that leads to synergy between NiO and CeO2.
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