One aspect is a production process including feeding a feed material composition into a reaction zone at a feeding position, wherein the feed material composition is liquid or gaseous or both; reacting the feed material composition in the reaction zone into a first plurality of particles by a chemical reaction; depositing the first plurality of particles onto a substrate surface of a substrate, thereby obtaining a porous silicon dioxide material, having a pore structure, in the form of up to 20 layers superimposing the substrate surface; at least partially removing the porous silicon dioxide material from the substrate surface; and modifying the pore structure of the porous silicon dioxide material, thereby obtaining the porous silicon dioxide material having a further pore structure.

One aspect is a production process including feeding a feed material composition into a reaction zone at a feeding position, wherein the feed material composition is liquid or gaseous or both; reacting the feed material composition in the reaction zone into a first plurality of particles by a chemical reaction; depositing the first plurality of particles onto a substrate surface of a substrate, thereby obtaining a porous silicon dioxide material, having a pore structure, in the form of up to 20 layers superimposing the substrate surface; at least partially removing the porous silicon dioxide material from the substrate surface; and modifying the pore structure of the porous silicon dioxide material, thereby obtaining the porous silicon dioxide material having a further pore structure.

The present invention relates to a method for producing silicon carbide-containing fibers or silicon carbide-containing nano- and/or micro-structured foams, and to the use thereof, in particular as anode materials for lithium-ion storage batteries.

The present invention relates to a method for producing silicon carbide-containing fibers or silicon carbide-containing nano- and/or micro-structured foams, and to the use thereof, in particular as anode materials for lithium-ion storage batteries.

A method of preparing a boron nitride material, such as boron nitride (BN) or boron carbonitride (BCN), is provided. The method may include providing a substrate, and sublimating an amine borane complex onto the substrate to obtain the boron nitride material. The amine borane complex may include, but is not limited to, borazine, amino borane, trimethylamine borane and triethylamine borane. In addition, the temperature at which the sublimating is carried out may be varied to control composition of the boron nitride material formed. In addition, various morphologies can be obtained by using the present method, namely films, nanotubes and porous foam.

One aspect is a production process including feeding a feed material composition into a reaction zone at a feeding position, wherein the feed material composition is liquid or gaseous or both; reacting the feed material composition in the reaction zone into a first plurality of particles by a chemical reaction; depositing the first plurality of particles onto a substrate surface of a substrate, thereby obtaining a porous silicon dioxide material, having a pore structure, in the form of up to 20 layers superimposing the substrate surface; at least partially removing the porous silicon dioxide material from the substrate surface; and modifying the pore structure of the porous silicon dioxide material, thereby obtaining the porous silicon dioxide material having a further pore structure.

One aspect is a production process including feeding a feed material composition into a reaction zone at a feeding position, wherein the feed material composition is liquid or gaseous or both; reacting the feed material composition in the reaction zone into a first plurality of particles by a chemical reaction; depositing the first plurality of particles onto a substrate surface of a substrate, thereby obtaining a porous silicon dioxide material, having a pore structure, in the form of up to 20 layers superimposing the substrate surface; at least partially removing the porous silicon dioxide material from the substrate surface; and modifying the pore structure of the porous silicon dioxide material, thereby obtaining the porous silicon dioxide material having a further pore structure.

A process for the production of a porous carbon product. The process includes the steps of (a) providing a substrate surface; (b) depositing silicon dioxide as a layer on the substrate surface, thereby obtaining a porous silicon di-oxide material; (c) contacting the porous silicon dioxide material on the substrate surface with a first carbon source thereby obtaining a first precursor comprising the porous silicon dioxide material and the first car-bon source; (d) heating the first precursor thereby obtaining a second precursor comprising the porous silicon dioxide material and carbon; and (e) at least partially removing the silicon dioxide in the second precursor, thereby obtaining the porous carbon product. Also disclosed are a porous carbon product and a device that uses a porous carbon product.

A process for the production of a porous carbon product. The process includes the steps of (a) providing a substrate surface; (b) depositing silicon dioxide as a layer on the substrate surface, thereby obtaining a porous silicon di-oxide material; (c) contacting the porous silicon dioxide material on the substrate surface with a first carbon source thereby obtaining a first precursor comprising the porous silicon dioxide material and the first car-bon source; (d) heating the first precursor thereby obtaining a second precursor comprising the porous silicon dioxide material and carbon; and (e) at least partially removing the silicon dioxide in the second precursor, thereby obtaining the porous carbon product. Also disclosed are a porous carbon product and a device that uses a porous carbon product.

The present approach relates to the fabrication of a composite material via a multi-step heating process. In one heating stage an internal region of a preform is heated by application of electro-magnetic radiation. In another heating stage, a region near the surface of the preform is heated from the exterior inward.