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

Centre National De La Recherche Scientifique

Commissariat a L'energie Atomique

Institut National Des Sciences Appliquees

Arkema France

Université Montpellier 2 Sciences Et Techniques

Ecole Nationale Superieure De Chimie De Montpellier

Bertin Technologies

Specific Polymers

Pierrick Buvat

Janick Bigarre

Bernard Boutevin

Bruno Ameduri

Philippe Belleville

Delphine Dru

Herve Galiano

Franck Jousse

Cédric Loubat

Jannick Bigarre

Christian Levassort

Christophe Coutanceau

Janick Bigarré

Ghislain David

Jean-François Gerard

Laurent Delnaud

Anne-Claire Ferrandez

Steve Baranton

Renaud Perrin

Julien Cellier

Quentin Crouzet

Philippe Mazabraud

François Ganachaud

Sergei Victorovich Kostjuk

Jérôme Chauveau

Hervé Galiano

Philippe Prene

Fabrice Odobel

Jerome Chauveau

Aurelien Soules

Jérôme Serre

Jean-Jacques Bougy

Frédérick Niepceron

Claude Bonnin

Benoit Blondel

Benoît Blondel

Laurent Chazot

Thomas Boucheteau

Stève Baranton

Coralie Houarner

Philippe Toneguzzo

Errol Blart

Sebastien Dagaz

Veronique Bounor-Legare

Brice Page

Frederick Niepceron

Lucie Malosse

Julien Souquet-Grumey

Alain Siove

Etienne Labalme

Dominique Ades

Gilles Boutevin

Aurélien Soules

Serguei Martemianov

Stéphane Carriere

Véronique Bounor Legare

Sérigne Seck

Steve Barenton

Veronique Bounor Legare

Paul Nguyen

Serigne Seck

Jean-Francois Gerard

Francois Ganachaud

Véronique Bounor-Legare

Clément Sanchez

Sébastien Dagaz

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 an installation () for assembling fuel cell membranes comprising:

Installation for assembling fuel cell membranes

The invention relates to inorganic particles which are covalently bonded to first polymer chains made up of at least one polymer carrying proton exchange groups, optionally in the form of salts, and bonded to second polymer chains made up of at least one fluorinated polymer that does not carry any proton exchange groups, the second chains being bonded to the particles via organic spacer groups, or the second chains being bonded to first chains via organic spacer groups, or some of the second chains being bonded to the particles via organic spacer groups while the remaining second chains are bonded to first chains via organic spacer groups.

Proton-conducting inorganic particles, method for the preparation thereof, and use thereof to form a fuel cell membrane

Silica particles bonded to polymer chains consisting of at least one polymer comprising at least one fluorinated styrene repeating unit comprising at least one proton-conducting group, optionally in the form of a salt, the bonding between the particles and each of the chains being carried out by an organic spacer group.

Fluorinated proton-conducting inorganic particles and use of said particles in proton-conducting membranes

A method for preparing particles comprising a material suitable for catalysing oxygen reduction or hydrogen oxidation, the particles being grafted by grafts consisting of at least one specific polymer comprising at least one repeating styrene unit bearing at least one proton-conducting group.

Method for preparing proton-conducting particles suitable for catalysing oxygen reduction or hydrogen oxidation by grafting specific proton-conducting polymers to the surface of same

A specific method for preparing platinum particles grafted with proton-conducting polymers and use of these particles as catalysts for oxygen reduction.

Method for producing proton-conducting platinum particles with a large active surface area and surface-grafted with specific, proton-conducting polymers

A method for manufacturing a composite bipolar plate from a composition including at least one lamellar graphite and at least one thermoplastic polymer. This method includes dry sieving of the composition with a sieve for which the mesh diameter is less than or equal to 1,000 &#x3bc;m, dry blending of the sieved composition, deposition of the blended composition in a mold, this mold preferably being pre-heated, molding by thermocompression of the blended composition with induction heating of the mold, and removal from the mold of the thermocompressed composition leading to the obtaining of the composite bipolar plate. A composite bipolar plate manufactured by this method, to the use of this composite bipolar plate as well as to a fuel cell including such a composite bipolar plate.

Method for manufacturing a composite bipolar plate, composite bipolar plate, uses thereof and fuel cell comprising such a composite bipolar plate

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

The invention relates to copolymers comprising a chain of siloxane repeat units of at least two different types, a first type of siloxane repeat unit comprising at least one &#x2014;OH group on the silicon atom of the siloxane repeat unit and a second type of repeat unit comprising at least one pendant chain on the silicon atom of said repeat unit, this pendant chain consisting of a polymer chain comprising a chain of repeat units carrying at least one group of formula &#x2014;PORRwherein Rand Rindependently represent a hydrogen atom, an alkyl group or a cation.

Specific phosphonated copolymers and inorganic particles grafted by said copolymers

The invention relates to a method for preparing particles comprising a material capable of catalyzing the reduction of oxygen or the oxidation of hydrogen, said particles being functionalized by polymers comprising at least one repeating unit bearing at least one proton-conducting group, and said particles being covalently bonded to a carbon material, said method comprising: a step a) of contacting particles, comprising a material capable of catalyzing the reduction of oxygen or the oxidation of hydrogen, with a polymer comprising at least one repeating unit bearing at least one proton-conducting group and comprising at least one portion corresponding to an organic radical of a compound that is an initiator for ATRP polymerization, said radical comprising at least one group capable of being grafted onto the surface of said particles, whereby particles, onto which polymers comprising at least one repeating unit bearing at least one proton-conducting group are grafted, are obtained.

Method for preparing proton-conducting particles capable of catalyzing the reduction of oxygen or the oxidation of hydrogen by grafting proton-conducting polymers to the surface of the particles

A method for preparing particles includes a material capable of catalyzing the reduction of oxygen or the oxidation of hydrogen, the particles being functionalized by polymers including at least one repeating unit bearing at least one proton-conducting group, and the particles being covalently bonded to a carbon material. The method includes the following consecutive steps: a) a step of contacting particles, comprising a material capable of catalyzing the reduction of oxygen or the oxidation of hydrogen, with a compound that is an initiator for ATRP polymerization, the compound comprising at least one group capable of being grafted onto the surface of the particles, whereby particles, onto which a radical of the initiator compound is grafted, are obtained; and b) a step of contacting the particles obtained in a) with at least one monomer having at least one proton-conducting group, whereby the polymerization of the monomer from the above-mentioned radicals occurs.

Method for preparing proton-conducting particles capable of catalyzing the reduction of oxygen or the oxidation of hydrogen

The invention relates to a method for functionalization of inorganic particles by polymers comprising at least one recurrent unit bearing at least one proton exchange group comprising the following steps:

Method for preparing proton-conducting inorganic particles

Sensitizing complexes, process for the preparation thereof, semiconductive inorganic/organic hybrid material comprising them, and photovoltaic cell comprising said material

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Montbazon, France

Pierrick Buvat