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 2

Effect of different weight % of ZnO_x on the 1-phenylethanol oxidation.

Entry	Catalyst	Conv. (%)	Sp. activity (mmol·g^−1·h^−1)	TON	TOF (h^−1)	Sel. (%)
1	0% ZnOx–MnCO3	78.31	17.40	/	/	>99
2	1% ZnOx–MnCO3	100.00	22.22	54.25	180.83	>99
3	3% ZnOx–MnCO3	92.43	20.54	18.08	60.27	>99
4	5% ZnOx–MnCO3	72.29	16.06	10.85	36.17	>99
5	7% ZnOx–MnCO3	60.14	13.36	7.70	25.67	>99

Reaction conditions: 2 mmol of 1-phenylethanol, 300 mg of catalyst, calcination temperature at 300°C, oxygen with rate 20 mL/min, reaction temperature at 100°C, 10 mL of toluene, and 18 min of reaction time.