Abstract
Nitrogen sorption isotherms of porous solids often exhibit hysteresis between adsorption and desorption. Application of percolation theory to this hysteresis enables the connectivity of the pore network to be assessed. However a major limitation is that for mixed meso/macroporous materials not all of the pores are filled with condensed nitrogen at the maximum relative pressure reached in a conventional adsorption experiment. A modified nitrogen sorption experiment is described in which the sample is immersed in liquid nitrogen before the desorption branch of the isotherm is determined. This allows the true shape of the hysteresis loop to be obtained.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
N. A. Seaton, Chem. Eng. Sci., 46, 1895–1909 (1991).
Hailing Liu and N. A. Seaton, Chem. Eng. Sci., 49, 1869–1878 (1994).
Hailing Liu, Lin Zhang and N. A. Seaton, J. Colloid Interface Sci., 156, 285–293 (1993).
P. C. Ball and R. Evans, Langmuir, 5, 714 (1989).
E. P. Barrett, L. G. Joyner and P. H. Halenda, J. Am. Chem. Soc. 73, 373–380 (1951).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1996 Kluwer Academic Publishers
About this chapter
Cite this chapter
Aukett, P.N., Jessop, C.A. (1996). Assessment of Connectivity in Mixed Meso/Macroporous Solids Using Nitrogen Sorption. In: LeVan, M.D. (eds) Fundamentals of Adsorption. The Kluwer International Series in Engineering and Computer Science, vol 356. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-1375-5_6
Download citation
DOI: https://doi.org/10.1007/978-1-4613-1375-5_6
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4612-8594-6
Online ISBN: 978-1-4613-1375-5
eBook Packages: Springer Book Archive