Reaction Kinetics and Catalysis Letters

, Volume 38, Issue 1, pp 63–72 | Cite as

Effect of electronic interaction between metal and support: How the nature of Ru/Al2O3 is modified

  • Li Yongxue
  • Wu Shuguang
  • Xin Qin
Article

Abstract

It is a well known fact that when supported on different supports, a transition metal may show different catalytic behavior. In some cases it is claimed that the differences in the acidity of supports are due to this phenomenon. In this work, by adding increasing amounts of MgO to Al2O3, the number of acid sites and hence the acidity of Al2O3 were monotonically decreased. The behavior of Ru supported on these mixed supports was investigated with IR, and it is concluded that the interaction between metal and acid sites on the surface is the most important factor for the changing properties.

Keywords

Physical Chemistry Al2O3 Catalysis Acidity Acid Site 

Abstract

Известно, что при нанесении металлов на носители, первые могут проявлять различные каталитические свойства. В некоторых случаях это объяснлют различиями в кислотности носителей. В настоящем исследовании число кислых центров и тем самым кислотность Al2O3 монотонно уменьшали добавлением MgO к Al2O3. Поведение Ru на смешанных носителях исследовали с помощью ИК-спектроскопии, откуда заключали, что наиболее важным фактором является вшаимодействие металла с кислотнымн центрами на поверх-ности.

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Copyright information

© Akadémiai Kiadó 1989

Authors and Affiliations

  • Li Yongxue
    • 1
  • Wu Shuguang
    • 1
  • Xin Qin
    • 1
  1. 1.Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianPeople's Republic of China

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