Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Modification of the theory of a three-dimensional filling of micropores


Compressibility of the adsorbate has been taken into account in calculating the maximum adsorption in micropores. On this basis, an equation has been derived for improvement of the theory of three-dimensional filling of micropores in application to the calculation of micropore volume by the Dubinin-Radushkevich equation. Evaluations for the case of benzene adsorption on activated carbons at ∼20°C have shown that the accounting for adsorbate compressibility leads to corrections of the Dubinin-Radushkevich theory amounting to approximately 10%.

This is a preview of subscription content, log in to check access.

Literature cited

  1. 1.

    M. M. Dubinin, Zh. Fiz. Khim.,39, 1305 (1965).

  2. 2.

    M. M. Dubinin, Izv. Akad. Nauk SSSR, Ser. Khim., No. 1, 9 (1991).

  3. 3.

    S. Brunauer, The Adsorption of Gases and Vapors, Princeton University Press (1943).

  4. 4.

    L. D. Landau and E. M. Lifshitz, Statistical Physics, Addison-Wesley, Reading (1958).

  5. 5.

    B. P. Nikol'skii (ed.), The Chemist's Handbook [in Russian], Vol. 1, GITKhL, Moscow (1951), p. 636.

  6. 6.

    M. D. Tilicheev (ed.), Physicochemical Properties of Individual Hydrocarbons [in Russian], No. 2, Gostoptekhizdat, Moscow (1947), p. 242.

Download references

Additional information

Institute of Physical Chemistry, Russian Academy of Sciences, Moscow. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 1, pp. 13–18, January, 1992.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Dubinin, M.M., Neimark, A.V. & Serpinskii, V.V. Modification of the theory of a three-dimensional filling of micropores. Russ Chem Bull 41, 5–9 (1992).

Download citation


  • adsorption
  • adsorption volume
  • compressibility
  • activated carbon
  • benzene