Ifp Energies Nouvelles

Centre National De La Recherche Scientifique

Electricite De France

Commissariat a L'energie Atomique

France Telecom

Consejo Superior De Investigaciones Cientificas

Sorbonne Université

Université Pierre Et Marie Curie (Paris 6)

Université Pierre Et Marie Curie

Université Pierre Et Marie Curie (Paris Vi)

College De France

Psa Automobiles Sa

Clement Sanchez

Cedric Boissiere

Alexandra Chaumonnot

Aurelie Coupe

David Grosso

Michel Martin

Lionel Nicole

Stephanie Pega

Patrick Euzen

Philippe Stevens

Philippe Belleville

Christian Serre

Audrey Bonduelle

Thu-Hoa Tran-Thi

Cecile Thomazeau

Gwenaelle Toussaint

Joseph Zyss

Nadine Nassif

Gerard Ferey

Christel Laberty-Robert

Marie-Madeleine Giraud-Guille

Karine Valle

Bruno Gilardin

Xavier Chaucherie

Isabelle Ledoux

Gilles Lancel

Damien Bregiroux

Hiva Baradari

Xavier Crozes

Jacques Livage

Pascal Griesmar

Germain Pucetti

Francisco Miguel Moreira Martins Fernandes

Frederic Colbeau-Justin

Laurence Rozes

Meenakshi Dan

Laure Bisson

Adrien Carretero-Genevrier

Marti Gich

Peter Hesemann

Adele Astorg

Theo Frot

Chloe Hoffman

Stéphane Delalande

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.

Injectable collagen suspensions, the preparation method thereof, and the uses thereof, particularly for forming dense collagen matrices

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.

Sol-gel method for producing an anti-corrosion coating on a metal substrate

The present invention relates to a process for preparing epitaxial &#x3b1;-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.

Process for preparing an epitaxial alpha-quartz layer on a solid support, material obtained and uses thereof

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.

Method for producing a waterproof and ion-conducting flexible membrane

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:

Process for preparing a spherical material with a hierarchical porosity comprising metallic particles trapped in a mesostructured matrix

Hierarchical porosity material consisting of at least two elementary spherical particles having a maximum diameter of 200 microns, at least one of said spherical particles comprises at least one matrix based on silicon oxide and exhibiting crystallized walls, said material having a macropore volume measured by mercury porosimetry ranging between 0.05 and 1 ml/g, a mesopore volume measured by nitrogen volumetric analysis ranging between 0.01 and 1 ml/g and a micropore volume measured by nitrogen volumetric analysis ranging between 0.03 and 0.4 ml/g. The preparation of said material and use of same as adsorbent or as acidic solid is also described.

Crystallized material with hierarchical porosity containing silicon

Material with hierarchical porosity consisting of at least two elementary spherical particles having a maximum diameter of 200 microns, at least one of said spherical particles comprising at least one matrix based on silicon oxide, said material having a macropore volume measured by mercury porosimetry ranging between 0.05 and 1 ml/g, a mesopore volume measured by nitrogen volumetric analysis ranging between 0.01 and 1 ml/g and a micropore volume measured by nitrogen volumetric analysis ranging between 0.03 and 0.4 ml/g, said matrix having amorphous walls. The preparation of said material is also described.

Amorphous silicon-containing material with hierarchical porosity

A process is described for preparing cubic metallic nanoparticles, comprising:

Process for synthesizing cubic metallic nanoparticles in the presence of two reducing agents

Material with hierarchical and organized porosity in the microporosity and mesoporosity domains, consisting of at least two elementary spherical particles, each one of said particles comprising a matrix based on silicon oxide, mesostructured, having a mesopore diameter ranging between 1.5 and 30 nm and exhibiting microporous and crystallized walls of thickness ranging between 1 and 60 nm, said elementary spherical particles having a maximum diameter of 200 microns. The preparation of said material is also described.

Crystallized silicon-containing material with hierarchical and organized porosity

A mesostructured material is described, which consists of at least two elementary spherical particles, each one of said particles comprising a mesostructured matrix based on aluminium oxide, said matrix having a pore diameter ranging between 1.5 and 30 nm, and an aluminium oxide content representing more than 46 wt. % of the mass of said matrix, which has amorphous walls of thickness ranging between 1 and 30 nm, said elementary spherical particles having a diameter D greater than 10 &#x3bc;m and less than or equal to 100 &#x3bc;m (10&#x3c;D(&#x3bc;m)&#x2266;100). Said mesostructured matrix can also contain silicon oxide. Each spherical particle of the mesostructured material can also contain zeolite nanocrystals so as to form a mixed porosity material of both mesostructured and zeolitic nature. The preparation of said material is also described.

Mesostructured material having a high aluminium content and consisting of spherical particles of specific size

A mesostructured aluminosilicate material is described, which consists of at least two elementary spherical particles, each one of said spherical particles consisting of a matrix based on silicon oxide and aluminium oxide, said matrix having a pore diameter ranging between 1.5 and 30 nm, a Si/Al molar ratio at least equal to 1 and amorphous walls of thickness ranging between 1 and 30 nm, said elementary spherical particles having a diameter D such that 10&#x3c;D(&#x3bc;m)&#x2266;100. A method of preparing said material and its application in the spheres of refining and petrochemistry are also described.

Mesostructured aluminosilicate material made of spherical particles of specific size

Material with hierarchical porosity consisting of at least two elementary spherical particles, each one of said particles comprising a matrix based on silicon oxide, mesostructured, having a mesopore diameter ranging between 1.5 and 30 nm and exhibiting amorphous and microporous walls of thickness ranging between 1.5 and 50 nm, said elementary spherical particles having a maximum diameter of 200 microns. The matrix based on silicon oxide can contain aluminium. The preparation of said material is also described.

Amorphous silicon-containing material with hierarchical and organized porosity

An inorganic material that consists of at least two elementary spherical particles, each of said spherical particles comprising metal nanoparticles that are between 1 and 300 nm in size and a mesostructured matrix with an oxide base of at least one element X that is selected from the group that consists of aluminum, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium and neodymium is described, whereby said matrix has a pore size of between 1.5 and 30 nm and has amorphous walls with a thickness of between 1 and 30 nm, said elementary spherical particles having a maximum diameter of 10 &#x3bc;m. Said material can also contain zeolitic nanocrystals that are trapped within said mesostructured matrix.

Inorganic material that has metal nanoparticles that are trapped in a mesostructured matrix

The present invention relates to compounds which can go to make up mesostructured porous hybrid organic-inorganic materials (MPHOIMs) and can serve, within these materials, as probe molecules for the detection or quantitative determination of halogenated gaseous compounds. It also relates to MPHOIMs in which these compounds are grafted by covalent or iono-covalent bonding, to a process for manufacturing these MPHOIMs, and also to chemical sensors for the detection or quantitative determination of halogenated gaseous compounds and comprising these MPHOIMs as sensitive materials. The invention applies, in particular, to the detection and quantitative determination of halogenated gaseous compounds used in the microelectronics field and, more especially, halogenated boron complexes.

Porous hybrid organic-inorganic materials for the detection of halogens

A mesostructured material that consists of at least two elementary spherical particles, each of said particles comprising a mesostructured matrix based on aluminum oxide and having a pore size of between 1.5 and 30 nm, an aluminum oxide content that represents more than 46% by weight relative to the mass of said matrix, which has amorphous walls with a thickness of between 1 and 30 nm and whereby said elementary spherical particles have a maximum diameter of 10 &#x3bc;m, is described. Said mesostructured matrix can also contain silicon oxide. Each of the spherical particles of the mesostructured material can also contain zeolitic nanocrystals so as to form a material with a mixed porosity that is both mesostructured and zeolitic in nature. The preparation of said material is also described.

Mesostructured material with a high aluminum content

Growing community of inventors

Gif-sur-Yvette, France

Clement Sanchez