Determination of the surface properties of a coke grist and its oxidised derivative

The surface properties of a slightly oxidized coke sample were compared to those of the non-oxidized coke using a series of analytical methods: acidimetry for the evaluation of the oxygenated surface group content, electron spectroscopy, determination of H-bonding ability, zeta potential measurement...

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Bibliographic Details
Published in:Carbon (New York) 1993, Vol.31 (1), p.129-133
Main Authors: Papírer, Eugène, Challamel, Xavier, Wu, Dong Yang, Fouletier, Mireille
Format: Article
Language:English
Subjects:
Applied sciences
Coal and derived products
Coke
Energy
Exact sciences and technology
Fuels
Inverse gas chromatography
Processing
surface properties
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Summary:The surface properties of a slightly oxidized coke sample were compared to those of the non-oxidized coke using a series of analytical methods: acidimetry for the evaluation of the oxygenated surface group content, electron spectroscopy, determination of H-bonding ability, zeta potential measurements and inverse gas chromatography (IGC). Some methods show no difference between the two coke samples, but IGC pointed to major changes especially when considering adsorption enthalpies and the entropies of a series of selected molecular probes.
ISSN:0008-6223
1873-3891
DOI:10.1016/0008-6223(93)90165-7