Comparative Catalytic Evaluation of Nano-ZrO_x Promoted Manganese Catalysts: Kinetic Study and the Effect of Dopant on the Aerobic Oxidation of Secondary Alcohols

Figure 1

SEM analysis of the as-synthesized catalysts calcined at (a-b) 300°C; (c-d) 400°C; (e-f) 500°C. (a-b) Overview image for as-synthesized 1% ZrO_x–MnCO₃; (c-d) overview image of 1% ZrO_x–MnO₂; (e-f) overview image of 1% ZrO_x–Mn₂O₃; (g) particle size distribution of 1% ZrO_x–MnCO₃; (h) particle size distribution of 1% ZrO_x–MnO₂; (i) particle size distribution of 1% ZrO_x–Mn₂O₃.