Centre National De La Recherche Scientifique

Universitè De Montpellier

Peugeot Citroen Automobiles Sa

Fuma-tech Gesellschaft Fur Funktionelle Membranen Und Anlagentechnologie Mbh

Sorbonne Université

Johnson Matthey Fuel Cells Limited

Universite Montpellier 2

Fumatech Bwt Gmbh

Deborah Jones

Jacques Roziere

Bruno Ameduri

Xavier Glipa

Bernd Bauer

Sara Cavaliere

Louis Delon

Guillaume Frutsaert

Giulio Alberti

Cédric Boissiere

Mario Casciola

Sarah Louise Burton

Monica Pica

Marion Giraud

Marco Faustini

Jennifer Peron

Yannick Najm Nabil-Moreau

Cédric Tard

Lydie Tchicaya-Boukary

Surya Subianto

Jacques ROZIÈRE

Sarah Burton

An electrocatalyst material having improved stability to corrosion compared to existing conductive high surface area carbon and metal carbide support materials is disclosed. The electrocatalyst material comprises (i) metal carbide nanotubes and (ii) a metal or metal alloy deposited on the metal carbide nanotubes. The electrocatalyst material is suitable for oxidising hydrogen, reducing oxygen or evolving hydrogen.

Electrocatalyst

The invention relates to a porous material in the form of microspheres based on iridium and/or iridium oxide, its preparation process, its use as anodic catalyst in a water electrolyser based on a solid polymer electrolyte, also called PEM water electrolyser (with PEM meaning 'Proton Exchange Membrane' or 'Polymer Electrolyte Membrane') or for the manufacture of light-emitting diodes for various electronic devices or for cars, and a PEM water electrolyser comprising such a material as an anode catalyst.

Iridium and / or iridium oxide microsphere-based porous material, preparation method therefor, and uses thereof

An electrolyte membrane including (i) a porous mat of nanofibres, wherein the nanofibres are composed of a non-ionically conducting heterocyclic-based polymer, the heterocyclic-based polymer comprising basic functional groups and being soluble in organic solvent; and (ii) an ion-conducting polymer which is a partially- or fully-fluorinated sulphonic acid polymer. The porous mat is essentially fully impregnated with ion-conducting polymer, and the thickness of the porous mat in the electrolyte membrane is distributed across at least 80% of the thickness of the electrolyte membrane. Such a membrane is of use in a proton exchange membrane fuel cell or an electrolyser.

Membrane

The invention relates to a monomer (6, 14) carrying an imidazole-type heterocycle (3). According to the invention, the chemical structure of said monomer (6, 14) comprises at least one unit of formula (I) wherein R1 comprises an alkenyl grouping and R2 comprises a grouping for protecting one of the nitrogen atoms of the heterocycle. The invention also relates to a monomer carrying a benzimidazole-type heterocycle, and to protected polymers obtained from said monomers, deprotected polymers produced by the protected polymers, a proton exchange membrane based on deprotected polymers, and a fuel cell provided with said membrane. Furthermore, the invention relates to methods for producing the above-mentioned monomers and polymers.

Monomers and polymers carrying imidazole and benzimidazole groupings, and proton exchange membrane containing the same for the production of a fuel cell

The invention relates to a monomer () carrying an imidazole-type heterocycle (). According to the invention, the chemical structure of said monomer () comprises at least one unit of formula (I) wherein R1 comprises an alkenyl grouping and R2 comprises a grouping for protecting one of the nitrogen atoms of the heterocycle. The invention also relates to a monomer carrying a benzimidazole-type heterocycle, and to protected polymers obtained from said monomers, deprotected polymers produced by the protected polymers, a proton exchange membrane based on deprotected polymers, and a fuel cell provided with said membrane. Furthermore, the invention relates to methods for producing the above-mentioned monomers and polymers. 

The present invention relates to a hybrid material, its use and its production process. The hybrid material comprises a polymer with acid groups. The inorganic part of the said hybrid material is constituted by the combination of at least two metal oxide components, whereof at least one comprises a functional group permitting an interaction and a spatial relationship with the acid groups of the polymer.

Hybrid material, use of said hybrid material and method for making same

The invention provides composite membrane materials comprising a polymer of the state of art uniformly filled with a zirconium phosphate, preferably &#x3b1;-zirconium phosphate or zirconium phosphate sulfoarylenphosphonate particels. The composite membrane materials are preferably prepared starting from a solution of a polymer of the state of art and from a colloidal dispersion of &#x3b1;-zirconium phosphate or a zirconium phosphate sulfoarylenphosphonate. The colloidal particles are transferred into the solution of the polymer preferably by mixing the dispersion with the solution or by means of phase transfer. The membrane material is preferably obtained by removing the solvent by evaporation or by a suitable non-solvent. Besides the composite membrane materials and the preparation methods, the use of the above membrane materials is claimed as ionomeric membranes with high overall performance in high tempreature, especially hydrogen, and in indirect methanol fuel cells and with decreased methanol crossover in direct methanol fuel cells.

Ion conducting composite membrane materials containing an optionally modified zirconium phosphate dispersed in a polymeric matrix, method for preparation of the membrane material and its use

Growing community of inventors

Montpellier, France

Deborah Jones