Abstract: A process for the preparation of a material comprising at least silicon particles and silicon nanowires, said process comprising: (1) introducing, into a chamber of a reactor, at least: silicon particles, and a catalyst, (2) introducing, into the chamber, a precursor composition comprising at least a silane compound or a mixture of silane compounds as precursor compound of the silicon nanowires, (3) decreasing the content of molecular oxygen in the chamber, (4) applying a heat treatment to the chamber at a temperature ranging from 270° C. to 600° C., and (5) recovering the material comprising at least silicon particles and silicon nanowires. A material based on silicon particles and on silicon nanowires and its use for manufacturing electrodes, notably anodes, which can be used in an energy storage device.

Abstract: A process for the preparation of a material including at least silicon particles and silicon nanowires, the process including the following stages: (1) the introduction, into a chamber of a reactor, of at least: silicon particles and a catalyst; (2) the introduction, into the chamber of the reactor, of a precursor composition of the silicon nanowires; (3) the decrease in the content of molecular oxygen in the chamber of the reactor; (4) the application of a heat treatment, and (5) the recovery of the product; and a material based on silicon particles and on silicon nanowires and to its use for manufacturing electrodes, notably anodes, which can be used in an energy storage device.

Abstract: A method for producing a material based on silicon nanowires is provided. The method includes the steps of: i) bringing into contact, in an inert atmosphere, a sacrificial support based on a halogenide, a carbonate, a sulfate or a nitrate of an alkali metal, an alkaline earth metal or a transition metal having metal nanoparticles, with the pyrolysis vapours of a silicon source having a silane compound, by which silicon nanowires are deposited on the sacrificial support; and optionally ii) eliminating the sacrificial support and recovering the silicon nanowires produced in step ii).

Abstract: The process for manufacturing a product (1) including nanoelements (2) includes: forming (E2) a mixture (6) including a plurality of electrically conductive grains (3), a catalyst (4) separate from the grains (3) of the electrically conductive grains, and a reactant (7) that is liquid or in the form of a suspension of solid particles in a liquid solvent and comprises a precursor of the material intended to form the nanoelements (2); introducing the mixture (6) into a chamber of a reactor and pressurizing the reactor to a pressure less than or equal to 1 bar; and obtaining (E3) the product (1) from the mixture (6) comprising a step (E3-1) of growing the nanoelements (2) from the catalyst (4), then combined with the grains (3) of the electrically conductive grains, the growth step (E3-1) being carried out by a step of heat treatment applied to the mixture (6).

Abstract: The process for manufacturing a product (1) including nanoelements (2) includes: —forming (E2) a mixture (6) including a plurality of electrically conductive grains (3), a catalyst (4) separate from the grains (3) of the electrically conductive grains, and a reactant (7) that is liquid or in the form of a suspension of solid particles in a liquid solvent and comprises a precursor of the material intended to form the nanoelements (2); —introducing the mixture (6) into a chamber of a reactor and pressurizing the reactor to a pressure less than or equal to 1 bar; and —obtaining (E3) the product (1) from the mixture (6) comprising a step (E3-1) of growing the nanoelements (2) from the catalyst (4), then combined with the grains (3) of the electrically conductive grains, the growth step (E3-1) being carried out by a step of heat treatment applied to the mixture (6).

Abstract: A method for producing a material based on silicon nanowires is provided. The method includes the steps of: i) bringing into contact, in an inert atmosphere, a sacrificial support based on a halogenide, a carbonate, a sulfate or a nitrate of an alkali metal, an alkaline earth metal or a transition metal having metal nanoparticles, with the pyrolysis vapours of a silicon source having a silane compound, by which silicon nanowires are deposited on the sacrificial support; and optionally ii) eliminating the sacrificial support and recovering the silicon nanowires produced in step ii).

Abstract: The present invention relates to novel bis-indolic derivatives, processes for their preparation, and their potential use as new antibacterial drugs.

Abstract: The present invention is related to new fluorescein derivatives, the method for producing such derivatives and their use for the synthesis of fluorogenic peptides and in particular protease substrates and peptide ligands.