Citation: Chen Zhang, Tao Wang, Yunjie Ding. One-step synthesis of pyruvic acid from glycerol oxidation over Pb promoted Pt/activated carbon catalysts[J]. Chinese Journal of Catalysis, ;2017, 38(5): 928-938. doi: 10.1016/S1872-2067(17)62835-3 shu

One-step synthesis of pyruvic acid from glycerol oxidation over Pb promoted Pt/activated carbon catalysts

Chen Zhang ^a,c, ,
Tao Wang ^a ,
Yunjie Ding ^a,b

a. Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
b. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
c. University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 9 March 2017
Revised Date: 10 April 2017

Fund Project: This work was supported by the National Natural Science Foundation of China (21176236).

One-step production of pyruvic acid through selective oxidation of glycerol was investigated using lead promoted platinum/activated carbon (Pb-Pt/AC) catalysts under mild conditions. The results of N₂ physisorption, X-ray diffraction, X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy revealed that the alloy phases of PtPb and Pt_xPb were favorable for pyruvic acid production from glycerol oxidation, whereas the Pb₃(CO₃)₂(OH)₂ and surface Pb⁰ species inhibited the glycerol conversion. The loading of Pb and the catalyst preparation method (including impregnation and deposition precipitation) affected the formation of different metal species. Pyruvic acid was obtained at a yield of 18.4% on a 5.0 wt% Pb-5.0 wt% Pt/AC catalyst prepared by co-deposition precipitation method and 500℃ argon treatment.
- Glycerol oxidation,
- Pyruvic acid,
- Lead promoter,
- Platinum,
- Activated carbon
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