Centre d’Élaboration de Matériaux et d’Etudes Structurales (UPR 8011)

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Prospects for new synthesis processes and new materials

This topic aims to synthesize new nanosized and/or nanostructured carbon phases, the best example of it being the proposed concept of meta-nanotubes, which states that (i) carbon nanotubes were known since the fifties, as the first generation of CNTs; (ii) the CNT revolution that started in the nineties mostly resulted in model materials as the second generation of CNTs, which fitted perfectly the needs for theoretical and fundamental works but barely fitted the needs for applications; (iii) Our technological future needs third-generation CNTs that are modified in some way so that resulting CNTs (so-called Meta-Nanotubes) overcome the limitations of pristine CNTs regarding their actual use and full benefit of their ultimate performances. Five routes were identified (functionalizing, coating/decorating, doping, filling, substituting), each of them corresponding to a rich research area. We have been focusing for long on filling (specifically SWCNTs, as a field that we pioneered along with Oxford University back in 1998) and coating, and we are now working on extending our expertise to doping, and substituting (resulting in hetero-CNTs).

Thin film CNT/PEEK

The formation of uniform dispersions from agglomerated carbon nanotubes in polymers is a major challenge for their use in composites. We show that agglomerated carbon nanotubes on top of (...)

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Diamanoïds are nanosized sp3 carbon films whose possible occurrence was predicted in 2009 as the result from the hydrogenation of graphene (sp2 carbon) films. They exhibit a tailorable gap in (...)

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Carbon nanocones

CVD growth of carbon nano cones, a unique synthesis of CEMES at present. These tips are used for electron emission in electronic microscopes with better coherence and stability over time than all (...)

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