Temperature dependence of the hysteresis loop in capillary condensation

  • Nguyen Thi Minh Hien
  • V. V. Serpinskii
Physical Chemistry

Conclusions

  1. 1.

    A new experimental method of studying capillary condensation events in a wide range of temperatures and pressures was developed.

     
  2. 2.

    Ten isotherms of adsorption and desorption of n-pentane on mesoporous silica gel in the −40 to 170°C temperature range (from 0.50 to 0.95 T/Tcr) were measured.

     
  3. 3.

    It was shown that the width of the capillary condensation hysteresis loop with constant filling should be extremely dependent on the temperature. The experimental data satisfactorily confirm the theoretical calculation.

     

Keywords

Experimental Data Experimental Method Hysteresis Loop Theoretical Calculation Mesoporous Silica 

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Literature cited

  1. 1.
    Nguyen Thi Minh Hien, A. A. Pribylov, and V. V. Serpinskii, Izv. Akad. Nauk SSSR, Ser. Khim., 2154 (1986).Google Scholar
  2. 2.
    Nguyen Thi Minh Hien, T. S. Serpinskii, and T. S. Yakubov, Izv. Akad. Nauk SSSR, Ser. Khim., 1711 (1986).Google Scholar
  3. 3.
    B. P. Vasil'ev, B. P. Bering, M. M. Dubinin, and V. V. Serpinskii, Dokl. Akad. Nauk SSSR,114, 131 (1967).Google Scholar
  4. 4.
    V. P. Zheleznyi and A. K. Pugach, Zh. Fiz. Khim.,59, 739 (1985).Google Scholar

Copyright information

© Plenum Publishing Corporation 1988

Authors and Affiliations

  • Nguyen Thi Minh Hien
    • 1
  • V. V. Serpinskii
    • 1
  1. 1.Institute of Physical ChemistryAcademy of Sciences of the USSRMoscow

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