Abstract
Surface properties of activated carbons and carbon fibers subjected to oxidation processes are investigated by means of inverse gas chromatography (IGC). A general correlation between surface density of acidic groups and the empirical parameter eπ related to electron acceptor interactions is established. Model adsorbents based on benzene derivatives with known numbers of functional groups are also studied by IGC to examine the effect of surface geometry in relationship to the eπ results from the carbons.
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