Identification of Active Phase for Selective Oxidation of Benzyl Alcohol with Molecular Oxygen Catalyzed by Copper-Manganese Oxide Nanoparticles

Table 2

Comparison of Mn-based catalyst with earlier reported results for its catalytic performance in oxidation of benzyl alcohol to benzaldehyde.

Catalyst	Conversion (%)	Selectivity (%)	Temp. (°C)	Specific activity (mmol·g^−1·h^−1)	Reference
MnO2	37.7	98.6	80	48.51	[42]
Cu-Mn oxide/C and TEMPO	100	>99	80	15.47	[51]
Cu2Mn-TEMPO	98.8	98.3	120	15.28	[50]
CuMn2 oxide	100	99	102	15.00	This work
Mn-Cu-TEMPO	98.0	98.0	20	13.37	[58]
Mn-Fe-HD	53.9	70.6	94	11.21	[36]
Ru/MnOx/CeO2	>99.0	>99	40	9.80	[47]
Amorphous MnO𝑥-110	72.7	100	110	9.69	[41]
[Mn(bpy)2]^2+/HMS	49.2	100	50	9.23	[46]
Mn6Ni4 hydroxide	89.0	99	100	8.90	[49]
CuMn4 oxide	99	95	102	8.49	[53]
Mn-Cr-HT	18.7	99.5	210	7.23	[37]
H-K-OMS-2	97.0	100	110	4.85	[40]
K-OMS-2	72.0	100	110	3.38	[39]
K(1)Mn(1)/𝛾-Al2O3	72.9	>99	100	2.43	[43]
Mn(1)/𝛾-Al2O3-𝑝	93.0	>99	100	2.33	[45]
K(2)Mn(1)/C	99.0	>99	100	1.65	[59]
Cu1Mn4/Al2O3	90.9	>99	100	1.52	[52]
10 wt.%Mn/AC	42.5	>99	100	1.06	[44]
MnCl2/Montmorillonite-K10	99.0	100	60	0.20	[60]