Centre National De La Recherche Scientifique

Université De Franche Comte

Bernard Gauthier-Manuel

Rutjaphan Kateklum

Jamal El Mansouri El Mouden

The present invention relates to a composite material comprising a porous solid matrix having interconnected channels, said matrix comprising sulfonate groups on at least a part of the surface of said channels, wherein a sulfonate group is in ionic interaction with a quaternary ammonium of a polymerizable molecule. The present invention also relates to a method for preparing such a composite material and applications thereof.

Anionic polyelectrolyte

A method for manufacturing an ion sensor, especially a pH measurement sensor, based on optical fibre, including the following steps: cleaving the optical fibre, with free hydroxyl groups appearing on the cleavage surface, grafting a layer of trifunctional silane directly on free hydroxyl groups having appeared accordingly on the cleavage surface of the optical fibre, without a prior external activation step, grafting a layer of difunctional silane on the cleavage surface of the optical fibre, and grafting a fluorescent dye.

Method of manufacture of an optical fibre-based pH measurement sensor

A process for the production of dihydrogen from hydrogenated silicon by bringing the hydrogenated silicon into contact with an alkaline solution. Devices of the fuel cell type using this hydrogen production method are also described.

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Besancon, France

Bernard Gauthier-Manuel