Centre d’Élaboration de Matériaux et d’Etudes Structurales


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Nanostructured carbons

The research work from the Carbons Team dispatches according to three main topics; the two first ones are dedicated to carbon materials being studied either pristine or combined with inorganic or organic: (1) nanocarbons and individual properties; (2) bulk carbons, composites, and collective properties. As far as possible, the whole chain is managed and studied from the synthesis to the fabrication of a demonstrator, meanwhile studying at various scales the material structure, behaviours, properties, and mechanisms at every step, but the team expertise in the field of carbon materials also makes that it is asked for contributing to projects mostly for material characterization purpose, whereas all others aspects are managed by the other partners to the projects. The third research activity axis therefore gathers the exploitation and development of the team expertise in characterization methodology, beyond carbon materials.

The first topic focuses on (i) carbon objects which are nanosized in all three dimensions (0D nanocarbons) such as fullerenes, and carbon blacks; (ii) carbon objects which are nanosized in two of their dimensions (1D nanocarbons) such as nanotubes, either pristine or combined with other elements, molecules, or phases, by means of filling, functionalisation, grafting, atom substitution… (meta-nanotubes); (iii) carbon objects which are nanosized in a single dimension only (2D nanocarbons) such as graphenes or graphene-derived materials (ex.: diamanoids); (iv) carbon objects intrinsically multidimensional such as carbon micro/nano-cones.

The second topic is devoted to any carbon material prepared as a bulk (as opposed to individual nanocarbons) by means of various methods such as CVD (pyrolytic carbons), or thermally-driven carbonisation-graphitisation processes from organic precursors (as for carbon fibres, or industrial cokes), or as a composite when combined with a matrix. This axis is also the place where macroscopic scale carbon materials built from several (nano)carbons are studied, either pristine or combined with other, non-carbon materials (metals, ceramics, polymers…) in order to generate specific, collective behaviours and properties.

The third topic is where the team expertise in some characterization methods, specifically optical microscopy, multiwavelength Raman spectroscopy, transmission electron microscopy, and X-ray diffraction, is exploited. The activity includes studying other, non-carbon materials of interest (e.g., perovskites), and implementing methodological developments.

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