Gold Bulletin

, Volume 50, Issue 4, pp 319–326 | Cite as

Au/CuMgAl-hydrotalcite catalysts promoted by Cu+ and basic sites for selective oxidation of glycerol to dihydroxyacetone

Original Paper
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Abstract

CuMgAl-hydrotalcite-supported Au catalysts were prepared and tested in the selective conversion of glycerol to dihydroxyacetone. The electron density of Au was decreased by Cu embedded in the supports, arising from the electron transfer from Au to Cu sites. The valence state (+ 1) of Cu ions was detected. Both Cu+ and basic sites (Mg–O) affected the catalytic activity of Au catalysts. The Cu+ sites promoted the selective oxidation of glycerol to dihydroxyacetone, while basic sites boosted the selectivity oxidation of glycerol to glyceric acid. The synergy of Cu+ sites and basic sites could effectively promote the activity and selectivity of Au catalysts in the selectively conversion of glycerol to dihydroxyacetone. A 53% conversion of glycerol and 72% of dihydroxyacetone selectivity were obtained under optimum reaction conditions.

Keywords

Glycerol oxidation Au catalyst Cu+ sites Basic sites Dihydroxyacetone 

Supplementary material

13404_2017_222_MOESM1_ESM.doc (2.5 mb)
ESM 1 (DOC 2570 kb)

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2017

Authors and Affiliations

  1. 1.Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of EducationShaanxi Normal UniversityXi’anPeople’s Republic of China
  2. 2.School of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi’anPeople’s Republic of China

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