Synthesis, Characterization, and Relative Study on the Catalytic Activity of Zinc Oxide Nanoparticles Doped MnCO₃, –MnO₂, and –Mn₂O₃ Nanocomposites for Aerial Oxidation of Alcohols

Table 3

Effect of reaction temperature on the oxidation of 1-phenylethanol using 1% ZnO_x–MnCO₃ as the catalyst.

Entry	(°C)	Conv. (%)	Sp. activity (mmol·g^−1·h^−1)	TON	TOF (h^−1)	Sel. (%)
1	20	36.07	8.01	19.57	65.23	>99
2	40	52.84	11.74	28.67	95.57	>99
3	60	69.12	15.36	37.50	125.0	>99
4	80	84.69	18.82	45.94	153.13	>99
5	100	100.0	22.22	54.25	180.83	>99

Reaction conditions: 2 mmol of 1-phenylethanol, 300 mg of catalyst, calcination temperature at 300°C, oxygen with rate 20 mL/min, 10 mL of toluene, and 18 min of reaction time.