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Adsorption Monolayer Formation in Confined Geometry: Apparent Fractal Dimension

Published online by Cambridge University Press:  10 February 2011

A.G. Qkunev  and
Yu.I. Aristov
A.G. Qkunev
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk 630090, Russia, fax:, 007-383-235-4573, e-mail:, okunev@catalysis.nsk.su
Yu.I. Aristov
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk 630090, Russia, fax:, 007-383-235-4573, e-mail:, okunev@catalysis.nsk.su
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Abstract

Here we present experimental results on adsorption of fatty acids, aliphatic alcohols, and acetone on the mesoporous silica gels with various porosity. Conclusion has been drawn that fractal resolution analysis of the silica surface may lead to apparent values of the surface dimension. These data are suggested to be analyzed by a simple model taking into account adsorbed layer thickness and steric difficulties of monolayer formation in narrow pores.

Keywords

adsorptionfractal dimensionmonolayer thicknesssilica gels.
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 464: Symposium FF – Dynamics in Small Confining Systems III , 1996 , 15
Copyright
Copyright © Materials Research Society 1997

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References

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