Detailed study has been made of the adsorption isotherms and differential heats of adsorption for the adsorption of benzene on microporous and nonporous carbon adsorbents of the same chemical type.
The heat of adsorption on microporous adsorbents is considerably higher than the heat of adsorption on a nonporous adsorbent of the same chemical type, this difference amounting to ∼4 kcal/mole over essentially the entire range of surface coverage in the case of benzene — carbon adsorbent systems.
Heats of adsorption determined calorimetrically at 25°C were combined with the 100°C adsorption isotherm through an isosteric equation, and a 25°C isotherm for benzene adsorption on AS charcoal over a wide range of values of surface coverage and relative pressures (curves covering a seven-order variation in p/ps were, for the first time, obtained for benzene at 25°C) developed and used to evaluate the thermodynamic functions of the systems in question.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
This is the net price. Taxes to be calculated in checkout.
M. M. Dubinin, Izv. Akad. Nauk, Ser. Khim., 996 (1974).
M. M. Dubinin, Prog. Surface Membrane Sci.,9, 1 (1975); J. Colloid Interface Sci.,23, 487 (1967);46, 351 (1974).
N. N. Avgul', G. I. Berezin, A. V. Kiselev, I. A. Lygina, and G. G. Muttik, Zh. Fiz. Khim.,31 1111 (1957); A. V. Kiselev, Usp. Khim.,25, 705 (1956).
M. M. Dubinin, A. A. Isirikyan, G. U. Rakhmatkariev, A. I. Sarakhov, and V. V. Serpinskii, Izv. Akad. Nauk, Ser. Khim., 1690 (1968); 1269 (1972).
A. A. Isirikyan and M. M. Dubinin, in: Physical Adsorption, Czechoslovak. Acad. Sci., Liblice (1975), p. 69.
A. A. Isirikyan, in: Methods of Studying the Structures of Highly Dispersed and Porous Bodies [in Russian], Izd-vo Akad. Nauk SSSR (1958), p. 85.
A. A. Isirikyan, Dissertation, Moscow (1957).
E. Hückel, Adsorption und Kapillarkondensation, Leipzig (1928).
M. M. Dubinin, Physicochemical Principles of Sorption Technology [in Russian], Second Ed., ONTI (1935), p. 122.
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 1929–1934, September, 1976.
About this article
Cite this article
Babaev, P.I., Dubinin, M.M. & Isirikyan, A.A. Energetic aspects of micropore adsorption in carbon adsorbents. Russ Chem Bull 25, 1815–1819 (1976). https://doi.org/10.1007/BF00921696
- Adsorption Isotherm
- Entire Range
- Surface Coverage