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

Specific Polymers

Janick Bigarré

Pierrick Buvat

Delphine Dru

Julien Cellier

Cédric Loubat

Christophe Coutanceau

Quentin Crouzet

Stève Baranton

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 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

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Tours, France

Janick Bigarré