Author： Larsen G. Silva H.S. de Silva R.V.
Publisher： Academic Press
ISSN： 0021-9797
Source： Journal of Colloid and Interface Science, Vol.224, Iss.1, 2000-04, pp. : 205-208
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Abstract
A nonisothermal adsorption experiment using a controlled flow of cyclopentane in the 333–313 K range is used to simultaneously estimate the specific surface area and micropore volume of a hybrid (organic/inorganic) alcogel. For reference, the method is also applied to an all-inorganic material with a more rigid structure, namely, a high surface area SiO2–Al2O3. The proposed data analysis provides guidelines to determine whether adsorption data on a certain adsorbate/adsorbent system can be modeled effectively as a convolution of BET (meso- and macropore) and Dubinin–Radushkevitch (DR, micropore) contributions.
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