Acta Phys. -Chim. Sin. ›› 2012, Vol. 28 ›› Issue (01): 170-176.doi: 10.3866/PKU.WHXB201228170

• CATALYSIS AND SURFACE SCIENCE • Previous Articles     Next Articles

Preparation of CuO-ZnO-ZrO2 by Citric Acid Combustion Method and Its Catalytic Property for Methanol Synthesis from CO2 Hydrogenation

GUO Xiao-Ming1,2, MAO Dong-Sen2, LU Guan-Zhong1,2, WANG Song2   

  1. 1. Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, P. R. China;
    2. Research Institute of Applied Catalysis, Shanghai Institute of Technology, Shanghai 200235, P. R. China
  • Received:2011-08-29 Revised:2011-10-15 Published:2011-12-29
  • Contact: MAO Dong-Sen, LU Guan-Zhong E-mail:dsmao@sit.edu.cn; gzhlu@ecust.edu.cn
  • Supported by:

    The project was supported by the Science and Technology Commission of Shanghai Municipality, China (08520513600), Leading Academic Discipline Project of Shanghai Education Committee, China (J51503), and Science and Technology Development Fund of Shanghai Institute of Science and Technology, China (KJ2010-05).

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Abstract: CuO-ZnO-ZrO2 (CZZ) catalysts for methanol synthesis from CO2 hydrogenation were prepared by a citric acid combustion method. The combustion reactions were analyzed in terms of propellant chemistry and the combustion behavior was recorded by thermo-gravimetric/differential thermal analysis (TG-DTA). The as-prepared CZZ powders were investigated with X-ray diffraction (XRD), N2 adsorption, temperature-programmed reduction (TPR), and reactive N2O adsorption techniques and the catalytic activities were evaluated for methanol synthesis from CO2 hydrogenation. The results show that the influence of citric acid quantity on the physicochemical and catalytic properties of CZZ is subtle, and the reason is related to the characteristics of the combustion reaction. Furthermore, the relationship between the quantity of fuel (citric acid, urea, and glycine) and the properties of the catalysts was determined. The citric acid combustion method exhibits better controllability and it is a simple, fast, and valuable route for the preparation of the CZZ catalyst for methanol synthesis from CO2 hydrogenation.

Key words: Combustion synthesis, Citric acid, CuO-ZnO-ZrO2, CO2 hydrogenation, Methanol