Faculté des sciences

## Comparative study of gas adsorption and small angle X-ray scattering by active carbons, in relation to heterogeneity

### In: Carbon, 1979, vol. 17, no. 6, p. 465-469

A comparative study of selected active carbons shows that the spread of the structural parameter B, implied by the generalized adsorption equation of Stoeckli, is compatible with the spread of the Guinier gyration radii suggested by the small-angle scattering of X-rays. In the case of a molecular-sieve carbon having a large micropore volume, there is no spread for either parameter. It is... Plus

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Summary
A comparative study of selected active carbons shows that the spread of the structural parameter B, implied by the generalized adsorption equation of Stoeckli, is compatible with the spread of the Guinier gyration radii suggested by the small-angle scattering of X-rays. In the case of a molecular-sieve carbon having a large micropore volume, there is no spread for either parameter. It is suggested, that all available SAXS and adsorption data should be reconsidered in terms of continuous distributions.