Comparative Study of Various Preparation Methods of CuO–CeO2 Catalysts for Oxidation of n–Hexane and iso–Octane

Origin of High Activity and Selectivity of CuO/CeO2 Catalysts Prepared by Solution Combustion Synthesis in CO-PROX Reaction

“…They found that the preparation method of CeO 2 has a great influence on the physicochemical properties and activities of CuO/CeO 2 catalysts concluding that the catalyst prepared via nitrate thermal decomposition showed the highest surface area, the smallest particle size, the highest dispersion of copper species, and strong metal−support interaction, resulting in the highest activity for methane combustion. The enhanced performance of catalysts prepared by methods promoting copper−ceria interaction, such as sol−gel, coimpregnation, urea gelation, or urea nitrate combustion is also reported by Rattan et al 21 for CO oxidation and Mishra et al 22 for complete oxidation of n-hexane and iso-octane. Good metal dispersion and improved interaction with ceria in CO-PROX catalysts prepared by SCS have been reported for copper 23,25,26 and PGM.…”