Science China Chemistry

, Volume 53, Issue 7, pp 1497–1501 | Cite as

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

  • Hong Ma
  • Xin Nie
  • JiaYing Cai
  • Chen Chen
  • Jin Gao
  • Hong Miao
  • Jie Xu
Articles
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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.

Keywords

gold Mg(OH)2 catalysis oxidation 1,2-propanediol lactic acid 
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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Hong Ma
    • 1
  • Xin Nie
    • 1
  • JiaYing Cai
    • 1
    • 2
  • Chen Chen
    • 1
  • Jin Gao
    • 1
  • Hong Miao
    • 1
  • Jie Xu
    • 1
  1. 1.State Key Laboratory of Catalysis; Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianChina
  2. 2.Graduate University of Chinese Academy of SciencesBeijingChina

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