Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Commissariat a L'energie Atomique

Arkema France

Institut National Des Sciences Appliquees

Centre National De La Recherche Scientifique

Ecole Nationale Superieure De Chimie De Montpellier

Janick Bigarre

Bruno Ameduri

Pierrick Buvat

Ghislain David

Herve Galiano

Jérôme Chauveau

Hervé Galiano

Cédric Loubat

Jean-François Gerard

Delphine Dru

Patrick Hourquebie

Véronique Bounor Legare

J&eacute;r&ocirc;me Matallana

Russell Tayouo

Benoît Blondel

Sérigne Seck

Serguei Martemianov

Gilles Boutevin

Etienne Labalme

Julien Souquet-Grumey

Benoit Blondel

Jerome Chauveau

Serigne Seck

Veronique Bounor Legare

Jean-Francois Gerard

Stéphanie Roualdes

Proton-conducting, fluorinated polymer grafted particles for use in the preparation of catalytic layers for fuel cells, such as H/air cells or H/Ocells. The grafted particles include a particle made of a material for catalyzing oxygen reduction or hydrogen oxidation, such as a platinum particle, that has been grafted with a proton-conducting, fluorinated polymer graft. The proton-conducting, fluorinated polymer graft includes an organic spacer group, a single bond or an organic spacer group, a repeating unit resulting from polymerization of a fluorinated styrenic monomer, and a repeating unit resulting, from polymerization of a non-fluorinated styrenic monomer bearing at least one proton-conducting group.

Particles suitable for catalyzing oxygen reduction or hydrogen oxidation and being proton-conducting by grafting specific proton-conducting fluorinated polymers to the surface thereof

The invention relates to copolymers comprising:   

Copolymers comprising crosslinkable protogenic groups which can be used to constitute fuel cell membranes

The invention relates to a method for controlling the functioning of a fuel cell comprising at least one membrane, comprising the following steps:

Non-invasive measurement method for controlling the functioning of a membrane fuel cell

The invention relates to a process for preparing a composite material comprising a fluorinated polymeric matrix and a filler consisting in ion exchange inorganic particles comprising a step for in situ synthesis of said particles within the polymeric matrix, said matrix comprising at least one first copolymer comprising at least two types of fluorinated recurrent units, a type of which bears at least one pendant maleic anhydride group.

Process for preparing an ion-exchange composite material comprising a specific polymer matrix and a filler consisting of ion-exchange particles

Process for charging a structure formed from an insulating body sandwiched between two electrodes. In the process a Faraday cage is placed in contact with one of the electrodes of the structure, the potential of the other electrode being made equal to a reference potential. Electrons originating from a controlled electron emission device are introduced into the Faraday cage, the electrons reaching the electrode with which the Faraday cage is in contact to charge the structure. Such a process may find particular application for determining properties of insulating materials.

Method for charging a structure comprising an insulating body

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Janick Bigarre