Selective Oxidation of Glycerol Using 3% H2O2 Catalyzed by Supported Nano-Au Catalysts

Abstract

A series of transition metal oxides or mixed oxides supported nano-Au catalysts were prepared for the selective oxidation of glycerol to glyceric acid using 3% H2O2. It was found that the composition and structure of supports significantly influenced the catalytic performance of catalysts. The mesoporous trimetal mixed oxide (CuNiAlO) supported nano-Au catalysts were more active in comparison with the others. In the present catalytic system, the highest glycerol conversion was 90.5%, while the selectivity of glyceric acid could reach 72%. Moreover, the catalytic performance remained after 11 times of reaction.

Dealuminization for a Modified (Si–OH)n–Pt Interface: Self-Activation of Pt/NaY Catalysts for Oxidation of Ethylene Glycol in a Base-Free Medium

“…Previous publications had reported that a small amount of H 2 O 2 was generated during alcohol oxidation due to the codissociation of O 2 and H 2 O. ,,− We also noticed that direct addition of H 2 O 2 to improve oxidation of alcohols might generate explosive hazards. , However, the presence of water in H 2 O 2 (only 6.4 ppm) and the alcohol system will not lead to the formation of such hazards during EG conversion, which has been demonstrated in existing literature works. , …”

Selective Oxidation of Alcohols Catalyzed by Supported Nano‐Au Catalysts

“…In our previous report, we had discussed the mechanism of the glycerol oxidation reaction with 3% H 2 O 2 used as oxidant over Au/CuNiAlO . And a possible pathway for the oxidation of hydroxyl groups of primary alcohols in glycerol was proposed.…”

Expeditious Syntheses to Pharmochemicals 1,3-Dihydroxyacetone, 1,3-Dichloro-, 1,3-Dibromo- and 1,3-Diiodoacetone from Glycerol 1,3-Dichlorohydrin Using Homogenous and Heterogenous Medium

“…Usually, it was observed a low conversion combined with a high selectivity or high conversion together with low selectivity. [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39] Recently, Liu et al 40 reported the photoelectrochemical oxidation of 1,3-DHA directly from glycerol using nanoporous BiVO 4 , with high conversion and selectivity of 51%. However, side products such as glyceric acid, formic acid, glycolic acid, CO 2 , CO and H 2 O 2 and O 2 were observed.…”