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Au/Mg(OH)2: Highly efficient for selective oxidation of 1,2-propanediol to lactic acid with molecular oxygen

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Abstract

The catalytic oxidation of biomass-derived polyhydroxyl compounds provides an efficient and green route for biomass resource utility. Gold nanocrystals supported on Mg(OH)2 were synthesized by sol-immobilization method, characterized by XRD, TEM, UV-vis DRS, and tested in the selective oxidation of 1,2-propanediol to lactic acid. The gold particle size and the ratio of Au to 1,2-propanediol strongly influenced the catalytic activity. Over Au/Mg(OH)2 with the majority of gold particles concentrated in 14–18 nm, excellent catalytic performance with 94.4% conversion and 89.3% selectivity to lactic acid has been achieved under 0.3 MPa O2 at 60 °C for 6 h.

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Correspondence to Jie Xu.

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Ma, H., Nie, X., Cai, J. et al. Au/Mg(OH)2: Highly efficient for selective oxidation of 1,2-propanediol to lactic acid with molecular oxygen. Sci. China Chem. 53, 1497–1501 (2010). https://doi.org/10.1007/s11426-010-4012-1

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  • DOI: https://doi.org/10.1007/s11426-010-4012-1

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