Centre National De La Recherche Scientifique

UniversitÉde Strasbourg

Izabela Janowska

Cuong Pham-Huu

Dominique Begin

Marc J Ledoux

Marc-Jacques Ledoux

Nicolas Keller

Pierre Bernhardt

Mathieu Grandcolas

Thierry Romero

Valérie Keller-Spitzer

Kambiz Chizari

Ovidiu Ersen

Shabnam Hajesmaili

Marc LeDoux

Pham-Huu Cuong

Cuong Pahm-Huu

The preparation of graphene, mono-, bi- and multi-layers from graphite-based precursor materials, for example, pencil lead or graphite, by a method of mechanical thinning on the surface of a planar substrate with controlled roughness, followed by sonication in order to collect the graphene deposited on the substrate in a liquid medium. The bearing force during thinning by mechanical friction enables the number of graphene sheets deposited on the surface of the substrate to be controlled.

Preparation of graphene by mechanically thinning graphite materials

The invention relates to a photocatalyst comprising a &#x3b2;-SiC cellular foam and a photocatalytically active phase, deposited directly on said cellular foam or on an intermediate phase deposited on said cellular foam. The average size of the cells is between 2500 &#x3bc;m and 5000 &#x3bc;m. The foam can comprise nanotubes or nanofibers (particularly of carbon, SiC, and TiO) that consist of, or carry as an intermediate phase, a photocatalytically active phase.

Photocatalysts based on structured three-dimensional carbide, in particular &#x3b2;-SiC, foams

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Strasbourg, France

Izabela Janowska