Advertisement

Journal of Materials Science

, Volume 28, Issue 7, pp 1937–1940 | Cite as

Porous materials sintering under conditions of catalytic reaction

  • E. D. Shchukin
  • S. I. Kontorovich
  • B. V. Romanovsky
Papers

Abstract

The effect of exothermal catalytic reaction of oxidation of carbon monoxide upon the strength and porosity of iron and nickel catalysts was analysed. It has been shown that during the course of this reaction at 573–623 K, a substantial four- to six-fold increase in the strength of the above catalysts occurs (under fixed porosity) if compared to samples annealed under the same temperature in an inert medium or in the presence of one of the components of the reaction. This effect is caused by facilitation of surface self-diffusion due to catalysis, and permits essential reduction of the sintering temperature. Similar effects have been observed on oxide (MgO, V2O5) catalysts.

Keywords

Oxidation Iron Polymer Porosity Nickel 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Ya. E. Geguzin, M. I. Girenkova, Yu. S. Kaganovsky, S. I. Kontorovich, T. P. Ponomareva, M. V. Tovbin andE. D. Shchukin, in “Proceedings of the National Conference: Non-Stationary Processes in Catalysis”, edited by G. Boreskov, Institute of Catalysis, Novosibirsk, 1979 (in Russian).Google Scholar
  2. 2.
    S. I. Kontorovich, T. P. Ponomareva, Ya. E. Geguzin, Yu. S. Kaganovsky andE. D. Shchukin,Poverkhnost (1) (1983) 111.Google Scholar
  3. 3.
    E. D. Shchukin andL. Ya. Margolis,ibid. (8) (1982) 1.Google Scholar
  4. 4.
    E. D. Shchukin, in “Mechanism of Catalysis”, edited by G. K. Boreskov and T. V. Andrushkevich (Nauka, Novosibirsk, 1984) Part 2, pp. 142–54 (in Russian).Google Scholar
  5. 5.
    E. D. Shchukin, S. I. Kontorovich, N. I. Girenkova, V. K. Yatsimirsky, Yu. S. Kaganovsky andL. N. Sokolova,Dokl. AN SSSR,318 (1991) 1417.Google Scholar
  6. 6.
    E. D. Shchukin,Kinetika Katalis 6 (1965) 641.Google Scholar
  7. 7.
    E. D. Shchukin, M. V. Dukarevich, S. I. Kontorovich andP. A. Rebinder,Dokl AN SSSR 182 (1968) 394.Google Scholar
  8. 8.
    Ya. E. Geguzin andYu. S. Kaganovsky, “Diffusion Processes on Crystal Surface” (Energoizdat, Moscow, 1984) in Russian.Google Scholar

Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • E. D. Shchukin
    • 1
    • 3
    • 4
    • 5
  • S. I. Kontorovich
    • 1
  • B. V. Romanovsky
    • 2
  1. 1.Institute for Physical Chemistry of the Russian Acadian of SciencesMoscowRussia
  2. 2.Moscow UniversityRussia
  3. 3.Moscow UniversityRussia
  4. 4.John Hopkins UniversityBaltimore
  5. 5.North Carolina State UniversityRaleighUSA

Personalised recommendations