Adsorption in Open Cylindrical Microporеs

Authors

  • V. V. Kutarov Mechnickov National University of Odessa
  • V. N. Shevchenko Mechnickov National University of Odessa
  • Yu. L. Zub Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine

Keywords:

adsorption, isotherm, adsorbate, molecular associate, voluminal filling of pores

Abstract

An equation of the adsorption isotherm for cylindrical pores with the diameter of 1-4 Van-der-Waals diameters of the adsorbate molecule has been suggested. It was obtained within the theory of volume filling of micropores where the pores are filling with molecular associate-cluster without surface tension similar to the process of capillary condensation. The equation of volumetric filling is formally analogous to Kelvin equation with the potential energy of the cluster as the key parameter. The resulting equation was tested for the adsorption of nitrogen on Davisil and methanol on silica gel.

References

1. Грег С., Синг К. Адсорбция, удельная поверхность, пористость. – Москва: Мир, 1984. – 310 с.

2. Everett D.H., Powl I.C. Adsorption in slit-like and cylindrical micropores in the Hеnry’s law region. A model for the microporosity of carbons // J. Chem. Soc., Faraday Trans. – 1976. – V. 72, N 3. – P. 619–623.

3. Ландау Л.Д., Лившиц Е.М. Статистическая физика. – Москва: Наука, 1964. – 567 с.

4. Pierce C., Wiley I.W., Smith R.N. Capillarity and surface area of charcoal // J. Phys.Chem. – 1948. – V. 53, N 5. – P. 669–683.

5. Дубинин М.М., Заверина Е.Д. Радушкевич Л.В. Сорбция и структура активных углей // Журн. физ. химии. – 1947. – Т. 21, № 11. – С. 1351–1362.

Downloads

How to Cite

(1)
Kutarov, V. V.; Shevchenko, V. N.; Zub, Y. L. Adsorption in Open Cylindrical Microporеs. Him. Fiz. Tehnol. Poverhni 2014, 5, 145-151.

Issue

Vol. 5 No. 2 (2014): Chemistry, Physics and Technology of Surface / Himia, Fizika ta Tehnologia Poverhni

Section

Articles

License

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.