Acta Phys. -Chim. Sin. ›› 2007, Vol. 23 ›› Issue (05): 659-663.doi: 10.3866/PKU.WHXB20070508

• ARTICLE • Previous Articles     Next Articles

Influence of Two Complexants on Structure and Performance of Ce-Sn-O Complex Oxides

ZHANG Xiao-Fei; HU Rui-Sheng; GAO Guan-Jun; MENG He; SU Hai-Quan   

  1. Key Laboratory of Rare Earth Materials, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, P. R. China
  • Received:2006-09-08 Revised:2006-12-06 Published:2007-04-28
  • Contact: HU Rui-Sheng E-mail:huruisheng@126.com

Abstract: The CeO2 and Ce-Sn-O complex oxides were prepared by sol-gel method using citric acid and glucose as complexing agents, respectively. The complex oxides were characterized by XRD, TPR, FT-IR, BET, and TEM, and their catalytic activities for the combustion of methane were evaluted. The results showed that the Ce-Sn-O complex oxide, which used glucose as complexing agent, had lower complete methane conversion temperature and larger specific surface area. The TEManalysis of the Ce-Sn-O complex oxide, which used glucose as complexing agent, revealed that the particles had a mean size of 14 nm and better dispersity, while the catalyst which used citric acid as complexing agent was seriously agglomerated.

Key words: Glucose, Citric acid, Sol-gel method, Methane combustion

MSC2000: 

  • O643