Carbon nanomaterials

Carbon nanomaterials (fullerenes, carbon nanotubes, graphene, etc) are subjects of intense research due to their excellent electronic and optical properties. Our research aims at synthesizing carbon-rich nanotubes and two-dimensional polymers whose physical properties can be modulated through modification of their chemical nature. To achieve this goal, we use a “hybrid” strategy that relies on the transformation of well-organized carbon-rich precursors in the solid state using physical stimuli (light or heat). This strategy allows a good control over the structural parameters of the resulting nanomaterials. As precursors, we use small molecules possessing alkyne moieties that we further transform into a polydiacetylene (PDA) intermediates. These PDAs are further graphitized to yield various carbon nanomaterials:

img_recherche_nanomateriauxdecarbone

Nanorods

Nanotubes

Nanotubes

To obtain nanotubes, we synthesize and self-assemble phenylacetylene macrocycles (PAM) that we irradiate to provide covalently-linked stable assemblies.

Nanotubes

JACS 2013, 135, 110.
OrgBiomolChem 2011, 9, 4440.
JMaterChemC 2013, 1, 2680.
ChemComm 2013, 49, 9546.

In addition to nanotubes, we use this approach to prepare other nanoarchitectures.

Nanoparticles

Nanoparticles

Nanoparticles

ChemComm 2012, 48, 10144.

2D Layered Materials

2D Layered Materials

Chem. Sci. 2014, 5, 831.