Abstract
The energetic surface heterogeneity of various carbon blacks has been investigated by means of volumetric gas adsorption techniques. From the adsorption isotherms of ethene at a coverage of about 0.001 up to 1 monolayer the energy distribution functions of adsorption sites are evaluated. Four discrete species of energetic adsorption sites are identified on all carbon black surfaces irrespective of morphology. The fraction of the different adsorption sites is found to depend significantly on the microstructure and primary particle size and on manufacturing conditions as well.
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