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Graphite nanoplatelet chemical cross-linking by elemental sulfur

Gianfranco Carotenuto1, Valentina Romeo1, Sergio De Nicola23* and Luigi Nicolais4

Author Affiliations

1 Institute for Composite and Biomedical Materials, CNR. P.le Tecchio, 80, 80125, Naples, Italy

2 Istituto Nazionale di Ottica, CNR, Via Campi Flegrei, 34, Pozzuoli 80078, Italy

3 INFN Sezione di Napoli, Complesso Universitario di M.S. Angelo, via Cinthia, Naples 80126, Italy

4 Department of Material Engineering and Production, University “Federico II” of Naples, P.le Tecchio, 80, Naples 80125, Italy

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Nanoscale Research Letters 2013, 8:94  doi:10.1186/1556-276X-8-94

Published: 20 February 2013


Graphite nanoplatelets (GNPs) react with elemental sulfur to provide a mechanically stable, spongy material characterized by good electrical conductivity and high surface development; such unique property combination makes these novel nanostructured materials very useful for applications in different technological fields. The carbon-sulfur reaction can be accurately investigated by thermal analysis (differential scanning calorimetry and thermogravimetric analysis) and energy-dispersive X-ray spectroscopy combined with scanning electron microscopy. The thermal treatment required for the formation of electrically conductive monosulfur connections among the GNP unities has been investigated.

81.05.Ue, 81.05.Rm, 81.16.Be

Graphite nanoplatelets; Sulfur; Mechanical stabilization; Calorimetry