J. Jagiello et al., MICROPORE STRUCTURE OF TEMPLATE-DERIVED CARBONS STUDIED USING ADSORPTION OF GASES WITH DIFFERENT MOLECULAR DIAMETERS, Journal of the Chemical Society. Faraday transactions, 91(17), 1995, pp. 2929-2933
Citations number
19
Categorie Soggetti
Chemistry Physical","Physics, Atomic, Molecular & Chemical
The microstructural properties of carbons obtained by carbonization of
poly(furfuryl alcohol) within different smectite matrices have been s
tudied by gas adsorption. A method based on the analysis of the gas ad
sorption data using the relationship between the adsorption energy and
micropore size, has been applied to evaluate micropore size distribut
ions. The range of sensitivity of the method in relation to the adsorb
ate molecular size is discussed. Three adsorbates, CH4, CF4 and SF6, h
aving different molecular diameters were used and analyses of their ad
sorption data have been used either to cross-validate the results obta
ined or for complementary information. The relationships between the p
ore size distribution, the adsorption energy distribution and the isos
teric heat of adsorption are discussed. The calculated pore size distr
ibutions for the synthetic carbons show differences related to the str
ucture of the mineral matrix.