scispace - formally typeset
Patent

High nitrogen doped corrugated carbon nanotube material and its synthesis process

Wang Lijun
TLDR
In this paper, the synthesis process of high nitrogen doped corrugated carbon nanotube material and its synthesis process is described, which includes the following steps: mixing Fe source and proper amount of distilled water, soaking porous molecular sieve to carry ferric oxide or ferrous oxide, stoving and roasting at 300-1000 deg.c for 0.5-24 hr to obtain catalyst; setting the catalyst inside a pipe furnace, leading organic amine into the furnace under the protection of Ar or N2 and reacting at 650- 1000 deg. c for 0
Abstract
The present invention relates to high nitrogen doped corrugated carbon nanotube material and its synthesis process. The synthesis process includes the following steps: mixing Fe source and proper amount of distilled water, soaking porous molecular sieve to carry ferric oxide or ferrous oxide, stoving and roasting at 300-1000 deg.c for 0.5-24 hr to obtain catalyst; setting the catalyst inside a pipe furnace, leading organic amine into the furnace under the protection of Ar or N2 and reacting at 650-1000 deg.c for 0.2-4.0 hr to obtain high nitrogen doped corrugated carbon nanotube mixture containing the catalyst; soaking the mixture in proper amount of or excessive hydrofluoric acid, sulfuric acid, nitric acid or acid for 0.5-24 hr; and washing in distilled water, suction filtering and drying to obtain high nitrogen doped corrugated carbon nanotube material. The material has nitrogen content of 10-40 %, reinforced surface polarity, etc, and is suitable for industrial production.

read more

Citations
More filters
Patent

Method for synthesis of cobalt nanoparticle and bamboo-like nitrogen doped carbon nanotube composite material

Cao Chuanbao, +1 more
TL;DR: In this article, a method for synthesis of a cobalt nanoparticle and a bamboo-like nitrogen doped carbon nanotube composite material is presented, which has the advantages of easily available raw materials, simple process and no pollution, short preparation period, mild reaction conditions, low cost, and mass synthesis capability.
Patent

Spherical nitrogen-doped carbon-supported non-noble metal oxygen reduction catalyst and preparation method thereof

TL;DR: In this paper, a spherical nitrogen-doped carbon-supported non-noble metal oxygen reduction catalyst and a preparation method for fuel cell material science is presented. And the preparation method of the catalyst comprises the following steps of: (1) uniformly mixing the melamine formaldehyde resin prepolymer with pure water; (2) adding the non-Noble metal salt and stirring; (3) adding acid into the solution obtained by the step (2), curing and drying to obtain blocks; and (4) performing thermal treatment to obtain the spherical nitrogen doped carbon
Patent

Method for preparing nitrogen-doped carbon nanotube fuel cell catalyst

TL;DR: In this article, a double-temperature area method is adopted to prepare a nitrogen-doped carbon nanotube fuel cell catalyst, aiming at the problems existing in the preparation methods of the existing nitrogen-Doped carbon Nanotubes.
Patent

Nitrogen doped carbon nanotubes with metal nanoparticles

TL;DR: In this article, the surface of a carbon nanotubes (NCNT) is charged with metal nanoparticles, and a method for the production thereof and use thereof as a catalyst is described.
Patent

Concrete reinforced with hybrid nanomaterials

TL;DR: Concrete reinforced with nanostructures, comprising cement and a dispersion including water, a surfactant, carbon nanotubes having on the external surfaces thereof carbon atoms substituted by atoms of another element as mentioned in this paper.