Effect of ultrasonic treatment of the mechanically mixed nanosized CuO–MgO solids on their catalytic properties in the CO oxidation

Enhancement of catalytic activity in NH3-SCR reaction by promoting dispersibility of CuCe/TiO2-ZrO2 with ultrasonic treatment

“…The main factors affecting the stability and activity of Cu-based and Ce-based catalysts are the grain size and dispersibility degree of the active ingredient. It has been reported that the physical and chemical effects of ultrasonic cavitation can effectively control the growth of crystals, improve the dispersion of active species on the support and promote the interaction of metals with support [13] , [14] , [15] , so the catalyst dealt with ultrasound will possess smaller average particle size, higher dispersion of active ingredients and stronger metal-support interaction. The catalysts dispersed with metal oxide crystals of various particle sizes promoted by ultrasound treatment need to be further explored by a depth theoretical analysis of experimental data to enhance the catalytic performance.…”