Three types of carbon were examined by inverse gas chromatography (IGC), at infinite and finite concentration conditions: graphite, carbon black and fullerene (C60) samples. Those samples differ by their structure and also by their surface properties (existence of defects, of polar surface groups...): surface free energy characteristics and surface energetic heterogeneity. IGC allows to determine in part these properties and evidences strong differences amongst the 3 carbons. (C) 1999 Elsevier Science Ltd. All rights reserved.
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Univ Salerno, Dept Biol & Chem, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, ItalyUniv Salerno, Dept Biol & Chem, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy
D'Urso, Luciana
Acocella, Maria Rosaria
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Univ Salerno, Dept Biol & Chem, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, ItalyUniv Salerno, Dept Biol & Chem, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy