ISSN:
1573-9171
Keywords:
active carbon
;
porous structure
;
adsorption of water and organic compounds
;
NMR
;
self-diffusion coefficient
;
diffusion activation energy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The mobility of molecules of water and fluorine-containing organic compounds adsorbed in a mixture on active carbons has been studied by the NMR pulsed field gradient technique (1H and19F resonances). Samples with various H2O/C6F6 and H2O/C2Cl3F3 ratios have been examined. The mobility of components at total fill factors θ 〉 0.8 has been shown to decrease in comparison with the adsorption of pure substances while the diffusion activation energy increases. The results are interpreted on the basis of adsorption mechanisms of water and organic compounds on active carbons.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00699972
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