Chinese Journal of Catalysis ›› 2011, Vol. 32 ›› Issue (12): 1831-1837.DOI: 10.1016/S1872-2067(10)60289-6

• Research papers • Previous Articles     Next Articles

Glycerol Oxidation with Oxygen over Bimetallic Pt-Bi Catalysts under Atmospheric Pressure

LIANG Dan1, CUI Shiyu2, GAO Jing1, WANG Junhua1, CHEN Ping1, HOU Zhaoyin1,*   

  1. 1Institute of Catalysis, Department of Chemistry, Zhejiang University, Hangzhou 310028, Zhejiang, China; 2Department of Chemical Engineering, Shandong College of Chemical Technicians, Tengzhou 277500, Shandong, China
  • Received:2011-07-14 Revised:2011-09-14 Online:2011-12-21 Published:2015-04-23

Abstract: A series of bimetallic Pt-Bi catalysts with a constant platinum content of 5.0 wt% and a varied bismuth content (3.0–7.0 wt%) supported on active carbon were prepared and used for glycerol oxidation with oxygen under atmospheric pressure. The bimetallic Pt-Bi/C was efficient for the selective oxidation of glycerol to dihydroxyacetone (DIHA) and the selectivity for DIHA reached 49.0% at a 91.5% conversion of glycerol over the 5%Pt-5%Bi/C catalyst. X-ray diffraction and transmission electron microscopy analysis revealed that the specially configured Pt-Bi nanoparticles in 5%Pt-5%Bi/C were highly dispersed (3.8 nm) over the active carbon support, which is proposed to contribute to the improved performance.

Key words: glycerol oxidation, platinum, bismuth, carbon support, dihydroxyacetone