Characterizing xerogels
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• BET methods
Xerogels are porous materials produced by drying a suspension at room temperature. Due to the thin-film nature of our materials when placed on substrates, xerogels are used to characterize the surface area, pore size and pore distribution of our materials. To do this, we use gas-phase adsorption methods and the classic BET equation. Nitrogen adsorption is typically measured and the characteristic shape of the hysterisis curve between the adsorption and desorption of nitrogen is characteristic of different types of pores.
Department of Environmental Chemistry and Technology, University of Wisconsin-Madison
660 North Park Street, Madison, WI 53706
contact us I +1-608-262-2674 I +1-608-446-8160 (cellular)
Professor Marc A. Anderson Lab of Sol-Gel Chemistry
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