Zheng Hai-long, Liao Shu-huan, Yu Lin. A Research of Mesoporous Copper-Manganese Mixed Oxides for Selective Oxidation of Benzyl Alcohol to Benzaldehyde[J]. 2017, 34(2): 28-33.
Zheng Hai-long, Liao Shu-huan, Yu Lin. A Research of Mesoporous Copper-Manganese Mixed Oxides for Selective Oxidation of Benzyl Alcohol to Benzaldehyde[J]. 2017, 34(2): 28-33.DOI: 10.12052/gdutxb.160025.
A Research of Mesoporous Copper-Manganese Mixed Oxides for Selective Oxidation of Benzyl Alcohol to Benzaldehyde
A novel template-free co-precipitation method was applied to synthesize mesoporous copper-manganese mixed oxides with high surface area
which can be obtained in large quantities. Catalytic activity of copper-manganese mixed oxides (Cu-Mn-
x
x
=1
2
4) has been studied in selective oxidation of benzyl alcohol using molecular oxygen as oxidizing agent and toluene as solvent. The catalysts exhibited highest activity
in which 90% conversion of the benzyl alcohol was achieved with 98% selectivity to benzaldehyde within a short reaction period only in 20 min at 102℃
when the design mole ratio of Cu/Mn was 1:2. The
physicochemical properties of the catalysts were characterized by XRD
SEM
TEM
BET
H2-TPR and EDS techniques. It shows that Cu and Mn can improve the catalytic performance each other effectively but there must be an appropriate mole ratio of Cu/Mn. In addition
there is a great relationship between the activity and the amount of catalysts
which shows that the higher activity the more catalysts.
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references
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