Reaction Kinetics and Catalysis Letters

, Volume 37, Issue 2, pp 493–499 | Cite as

Effect of addition of intermetallic componds on the catalytic activity of La2CuO4

  • J. Christopher
  • C. S. Swamy
Article

Abstract

Decomposition of nitrous oxide has been studied on pure La2CuO4, La2CuO4 with 5 wt.% CaNi5 and La2CuO4 with 5 wt.% NiO in the temperature range 200–480°C at 200 Torr initial pressure of reactant gas. The addition of 5 wt.% CaNi5 decreases the energy of activation drastically in comparison with La2CuO4. The results are explained on the basis of the dispersity of Ni/NiO on La2CuO4.

Keywords

Oxide Physical Chemistry Catalysis Catalytic Activity Nitrous Oxide 

Abstract

Разложение закиси азтоа исследовали на чистом La2CuO4 и с 5вес.% добавкой CaNi5 и 5 вес.% добавкой NiO к катализатору, в интервале температур 200–480°C и при исходном давлении реагирующего газа 200 торр. Добавление 5 вес. % CaNi5 значительно снижает энергню активации по сравнению с чистым катализатором. Результаты обьясняются образованием дисперсий Ni/NiO на La2CuO4.

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References

  1. 1.
    G. D. Sandrock, E. L. Huston: Chem. Tech.,11, 754 (1981).Google Scholar
  2. 2.
    H. Wenzl: Int. Metals Rev.,27, 140 (1952).Google Scholar
  3. 3.
    W. E. Wallace: Chemtech, 752 (1982).Google Scholar
  4. 4.
    H. Imamura, W. E. Wallace: J. Catal.,65, 127 (1980).Google Scholar
  5. 5.
    H. Imai, T. Tagawa, M. Kuraishi: Mat. Res. Bull.,20, 511 (1985).Google Scholar
  6. 6.
    K. V. Ramanujachary, N. Kameswari, C. S. Swamy: J. Catal.,86, 121 (1984).Google Scholar
  7. 7.
    K. V. Ramanujachary, C. S. Swamy: J. Catal.,93, 279 (1985).Google Scholar
  8. 8.
    B. Viswanthan, S. Madhavan, C. S. Swamy: Proc. 2nd Indo-Soviet Seminar on Catalysis, Hyderabad, India, 1986, p. 333.Google Scholar
  9. 9.
    A. Cimino, Y. Indovina, F. Pepe, F. S. Stone: Gazz. Chim. Ital.,103, 935 (1973).Google Scholar
  10. 10.
    W. D. Mross: Catal. Rev.-Sci. Eng.,25, 591 (1983).Google Scholar

Copyright information

© Akadémiai Kiadó 1988

Authors and Affiliations

  • J. Christopher
    • 1
  • C. S. Swamy
    • 1
  1. 1.Indian Institute of TechnologyMadrasIndia

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