Abstract: The present application relates to a proton exchange membrane for fuel cell, said membrane having self-regenerating properties, to cells comprising said membranes, and to the manufacturing method thereof via electrospinning.

Abstract: A thin film on a surface of a solid substrate, including: a) spraying on the surface: —a colloidal suspension including solid nanoparticles (or colloids) of an inorganic compound dispersed in a solvent to obtain a wet layer of the colloidal suspension on the surface; or —a suspension including an inorganic compound in polymeric form in a solvent, to obtain a wet layer of the suspension of the inorganic compound in polymeric form on the surface; or —a solution or suspension of an organic polymer in a solvent, to obtain a wet layer of the solution or suspension of the organic polymer on the surface; b) drying the wet layer; c) optionally, heat-treating the wet layer that has undergone the drying step, whereby the thin film is obtained; wherein: the solvent comprises at least 95% by weight of water, and the drying is carried out in a static atmosphere.

Abstract: Disclosed is the preparation of injectable collagen suspensions, to the method for preparing the suspensions, and to the uses thereof, particularly for forming dense collagen matrices.

Abstract: A manufacturing process that includes spray-drying a liquid composition based on liquid residues derived from a chemical extraction of clinker to form a material with a high specific surface area. Also, a material based on clinker residues having a high specific surface area ranging from 200 m2.g?1 to 900 m2.g?1 and a mesopore size ranging from 2 nm to 50 nm. Further, the use of a material having a high specific surface area for the absorption of pollutants species.

Abstract: A sol-gel method for producing an anti-corrosion coating consisting of at least one layer of an oxide on a metal substrate. A non-aqueous solution of a precursor of the oxide is prepared and deposited on one surface at least of the metal substrate in order to cover said surface at least partially with a film comprising the precursor of the oxide. Hydrolysis-condensation of the precursor of the oxide is carried out by exposing the film to a humid atmosphere in order to form an oxide network in the film. Then, a treatment for stabilizing the film on the surface of the substrate is carried out, followed by a heat treatment of the surface of the metal substrate in order to crystallize the network of oxide and form the anti-corrosion coating.

Abstract: A composition which can be photopolymerized to make a part consisting of an oxide ceramic, or a hybrid part comprising at least one oxide ceramic and organic constituents, by a stereolithographic technique, the composition comprising: at least one photopolymerizable organic compound; at least one photo-initiator; at least one precursor of the oxide ceramic wherein the composition comprises from 25% to 70% by mass, relative to the total mass of the composition, of the at least one precursor of the oxide ceramic; and wherein the at least one precursor of the oxide ceramic comprises a mixture comprising a nanometric powder of the oxide ceramic, and at least one other element selected from a micrometric powder of the oxide ceramic and a pre-ceramic compound of the oxide ceramic.

Abstract: The invention relates to a material in the form of a cellular solid monolith consisting of an inorganic oxide polymer. Said monolith comprises macropores which have an average size dA of 4 ?m to 50 ?m, mesopores that have an average size dE of 20 to 30 ?, and micropores which have an average size d1 of 5 à 10 ?, said pores being interconnected. The inorganic oxide polymer has organic groups R of formula —(CH2)n—R1, wherein 0?n?5, and R1 is selected from among a thiol group, a pyrrole group, an amino group having one or more optional, optionally substituted alkyl, alkylamino, or aryl substituents, an alkyl group, or a phenyl group optionally having an alkyl-type substituent R2. The disclosed material can be used as a substrate for a metal catalyst and for decontaminating liquid or gaseous media.

Abstract: The present application relates to a proton exchange membrane for fuel cell, said membrane having self-regenerating properties, to cells comprising said membranes, and to the manufacturing method thereof via electrospinning.

Abstract: A nanostructured material consisting essentially of boron. The material is in amorphous form and comprising aggregates of boron nanoparticles. A method of preparation thereof and the uses thereof.

Abstract: The present invention pertains to a fluoropolymer film comprising at least one fluoropolymer hybrid organic/inorganic composite [polymer (FH)], to a process for the manufacture of said fluoropolymer film and to uses of said fluoropolymer film in various applications, in particular in electrochemical applications.

Abstract: A process for manufacturing a material with a high specific surface area, including a step of spraying a liquid composition based on liquid residues derived from a chemical extraction of clinker, to a material based on clinker residues having a high specific surface area ranging from 200 m2·g?1 to 900 m2·g?1 and also by a mesopore size ranging from 2 nm to 50 nm, and to the use of materials for the absorption of pollutants species.

Abstract: A sol-gel method for producing an anti-corrosion coating consisting of at least one layer of an oxide on a metal substrate. A non-aqueous solution of a precursor of the oxide is prepared and deposited on one surface at least of the metal substrate in order to cover said surface at least partially with a film comprising the precursor of the oxide. Hydrolysis-condensation of the precursor of the oxide is carried out by exposing the film to a humid atmosphere in order to form an oxide network in the film. Then, a treatment for stabilizing the film on the surface of the substrate is carried out, followed by a heat treatment of the surface of the metal substrate in order to crystallize the network of oxide and form the anti-corrosion coating.

Abstract: The present invention relates to a process for preparing epitaxial ?-quartz layers on a solid substrate, to the material obtained according to this process, and to the various uses thereof, especially in the electronics field.

Abstract: A nanostructured material consisting essentially of boron. The material is in amorphous form and comprising aggregates of boron nanoparticles. A method of preparation thereof and the uses thereof.

Abstract: A method for producing a waterproof and ion-conducting flexible membrane intended for protecting a metal electrode. It comprises a synthesis by electrically assisted extrusion of compact fibers forming an ion-conducting fiber array comprising a first material. The fiber array defines a first surface and a second surface opposite the first surface. Subsequently, the fiber array is impregnated with a polymer of a second material, to form a metal electrode protection membrane. The fiber array forms paths for conducting ions between the first surface and the second surface and through the second material. The first surface is intended to be in contact with the metal electrode.

Abstract: Disclosed is the preparation of injectable collagen suspensions, to the method for preparing the suspensions, and to the uses thereof, particularly for forming dense collagen matrices.

Abstract: A method for producing a waterproof and ion-conducting flexible membrane intended for protecting a metal electrode. It comprises a synthesis by electrically assisted extrusion of compact fibers forming an ion-conducting fiber array comprising a first material. The fiber array defines a first surface and a second surface opposite the first surface. Subsequently, the fiber array is impregnated with a polymer of a second material, to form a metal electrode protection membrane. The fiber array forms paths for conducting ions between the first surface and the second surface and through the second material. The first surface is intended to be in contact with the metal electrode.

Abstract: The present invention pertains to a fluoropolymer film comprising at least one fluoropolymer hybrid organic/inorganic composite [polymer (FH)], to a process for the manufacture of said fluoropolymer film and to uses of said fluoropolymer film in various applications, in particular in electrochemical applications.

Abstract: A process is described for the preparation of an inorganic material with a hierarchical porosity in the micropore and mesopore domains. The material has at least two elementary spherical particles having a maximum diameter of 200 microns. The process comprises: a) preparing a solution containing zeolitic nanocrystals with a maximum nanometric dimension equal to 60 nm based on silicon and/or precursor elements of proto-zeolitic entities based on silicon; b) mixing, in solution, metallic particles or at least one metallic precursor of metallic particles, a surfactant and the solution obtained in accordance with a) such that the ratio of the volumes of inorganic and organic materials, Vinorganic/Vorganic, is 0.29 to 0.50; c) aerosol atomization of the solution obtained in b) resulting in formation of spherical particles; d) drying the particles; g) eliminating any remaining precursor elements of proto-zeolitic entities based on silicon and the surfactant.

Abstract: A macroporous monolithic composite material to a carbon monolith is provided having a hierarchized porous structure has metal nanoparticles. The arrangement also includes a process for the preparation thereof, a process for storing hydrogen that uses same, and to a process for producing gaseous hydrogen that uses such a composite material, where the process is reversible.