Ifp Energies Nouvelles

Centre National De La Recherche Scientifique

Consejo Superior De Investigaciones Cientificas

Université Pierre Et Marie Curie (Paris 6)

Université Pierre Et Marie Curie

Cedric Boissiere

Clement Sanchez

Alexandra Chaumonnot

Aurelie Coupe

David Grosso

Michel Martin

Stephanie Pega

Patrick Euzen

Audrey Bonduelle

Cecile Thomazeau

Nadine Nassif

Marie-Madeleine Giraud-Guille

Francisco Miguel Moreira Martins Fernandes

Frederic Colbeau-Justin

Adrien Carretero-Genevrier

Laure Bisson

Marti Gich

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

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 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

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.

Growing community of inventors

Paris, France

Cedric Boissiere