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Hysteresis Phenomena in Nanoconfinements: Density Functional Theory and Experiments

Published online by Cambridge University Press:  10 February 2011

A.V. Neimark  and
P.I. Ravikovitch
A.V. Neimark
Affiliation:
TRI/Princeton, 601 Prospect Av., Princeton, NJ, 08542–0625, aneimark@triprinceton.org Chemical Engineering/Yale University, New Haven, CT, 06520–8286
P.I. Ravikovitch
Affiliation:
Chemical Engineering/Yale University, New Haven, CT, 06520–8286
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Abstract

Hysteresis phenomena are observed in many nanoporous environments during adsorption/desorption isothermal quasiequilibrium cycles. A non-local DFT model has been developed for predicting adsorption/desorption isotherms in nanopores of different geometries in the wide range of pore sizes (0.5–10 nm) based on given intermolecular fluid/fluid and fluid/solid potentials. Depending on the confining geometry and the intermolecular potentials two types of hysteresis phenomena are occurred: capillary condensation/evaporation that implies volume filling of pores with a liquid-like matter, and layering adsorption/desorption that implies sequential step-wise formation of adsorption layers. It is shown that the DFT model qualitatively describes these phenomena and is in a reasonable quantitative agreement with some of the experiments.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 464: Symposium FF – Dynamics in Small Confining Systems III , 1996 , 165
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

1. Cohan, L.H., J. Amer. Chem. Soc., 60, 433 (1938)Google Scholar
2. Kiselev, A.V., Uspechi Khimii, 14, 367 (1945)Google Scholar
3. Everett, D.H., The Solid-Gas Interface, Vol. 2, edited by Flood, E.A., Dekker: New York, 1967 Google Scholar
4. Derjaguin, B.V., Acta Phys. Chem URSS, 12, 181 (1940)Google Scholar
5. Broekhoff, J.C.P., de Boer, J.H., J. Catalysis, 9, 8 (1967);Google Scholar
Broekhoff, J.C.P., de Boer, J.H., J. Catalysis, 10, 368 (1968)Google Scholar
6. Tarazona, P., Phys. Rev. A, 31, 2672 (1985)Google Scholar
7. Evans, R., Marini Bettolo Marconi, U., Tarazona, P., J. Chem. Soc. Faraday Trans. 2, 82, 1763 (1986)Google Scholar
8. Peterson, B.K., Walton, J.P.R.B., Gubbins, K.E., J. Chem. Soc. Faraday Trans. 2, 82, 1789 (1986)Google Scholar
9. Peterson, B.K., Gubbins, K.E., Heffelfinger, G.S., Marini Bettolo Marconi, U., van Swol, F., J. Chem. Phys., 88, 6487 (1988)Google Scholar
10. Heffelfinger, G.S., van Swol, F., Gubbins, K.E., J. Chem. Phys., 89, 5202 (1988)Google Scholar
11. Ball, P.C., Evans, R., J. Chem. Phys., 89, 4412 (1988)Google Scholar
12. Ball, P.C., Evans, R., Langmuir, 5, 714 (1989)Google Scholar
13. Peterson, B.K., Heffelfinger, G.S., Gubbins, K.E., van Swol, F., J. Chem. Phys., 93, 679 (1990)Google Scholar
14. Balbuena, P.E., Gubbins, K.E., Fluid Phase Equilibria, 76, 21 (1992)Google Scholar
15. Ravikovitch, P.I., Neimark, A.V., Domhnaill, S.C.Ó, Schüth, F., Unger, K.K., Langmuir, 11, 4765 (1995 Google Scholar
16. Neimark, A.V., Ravikovitch, P.I., Domhnaill, S.C.Ó, Schüth, F., Unger, K.K., in Fundamentals of Adsorption; LeVan, M.D., Ed.; Kluwer: Boston, 1996; p. 667 Google Scholar
17. Neimark, A.V., Ravikovitch, P.I., Grün, M., Schüth, F., Unger, K.K. in Characterization of Porous Solids IV, 1996, in pressGoogle Scholar
18. Inaba, A., Koga, Y., Morrison, J.A., J. Chem. Soc. Faraday Trans. 2, 82, 1635 (1986)Google Scholar
19. Lysek, M.J., LaMadrid, M., Day, P., Goodstein, D., Langmuir, 8, 898 (1992); 9, 1040 (1993)Google Scholar
20. Day, P., LaMadrid, M., Lysek, M.J., Goodstein, D., Phys. Rev. B, 47, 7501 (1993)Google Scholar
21. Day, P., Lysek, M.J., LaMadrid, M., Goodstein, D., Phys. Rev. B, 47, 10716 (1993)Google Scholar
22. Neimark, A.V., Langmuir, 11, 4183 (1995)Google Scholar
23. Gregg, S.J., Sing, K.S.W., Adsorption, Surface Area and Porosity, Academic Press: New York, 1982 Google Scholar
24. Lee, D.D., Telo da Gama, M.M., Gubbins, K.E., Mol. Phys., 53, 1113 (1984)Google Scholar
25. Steele, W.A., The Interactions of Gases with Solid Surfaces, Pergamon: New York, 1974 Google Scholar