Reaction Kinetics and Catalysis Letters

, Volume 65, Issue 1, pp 83–86 | Cite as

Basicities of alumina-supported alkaline earth metal oxides

  • Yu-Wen Chen
  • Hsueh-Ying Chen
  • Wen-Fa Lin


A series of alumina-supported alkaline earth metal oxide catalysts were prepared by incipient-wetness impregnation. These catalysts were characterized by nitrogen-sorption to determine their surface areas and pore size distributions. The basicities of these catalysts were characterized by temperature-programmed desorption of carbon dioxide. The TPD results demonstrate that all of the catalysts have one-peak profiles. The basicity increases with increasing atomic number of the alkaline earth metal. The alumina-supported alkaline earth oxides exhibit the same basic properties as bulk metal oxides. However, the presence of alumina can increase the mechanical strength of the catalyst, since the alkaline earth oxides have a weak mechanical strength. The basic properties of the catalysts are strongly influenced by the calcination temperature.


Alkaline earth oxide basicity temperature-programmed desorption of carbon dioxide 


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Copyright information

© Akadémiai Kiadó 1998

Authors and Affiliations

  • Yu-Wen Chen
    • 1
  • Hsueh-Ying Chen
    • 2
  • Wen-Fa Lin
    • 2
  1. 1.Department of Chemical EngineeringNational Central UniversityChung-LiTaiwan
  2. 2.Union Chemical LaboratoryIndustrial Technology Research InstituteHsinchuTaiwan

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