A kind of preparation method of metal single atom doped graphene

Abstract

The invention relates to the field of metal single atom doped carbon materials, in particular to a method for preparing metal single atom doped graphene with a controllable loading amount. Using surface-functionalized graphene as the matrix, carbon nitride, melamine, amino acid, thiourea, urea, dicyanamide and polyvinylpyrrolidone and other organic matter atomically dispersed metal salts as intermediates, through pyrolysis in a protective atmosphere to prepare A series of metal single-atom doped graphene structures were developed. The invention uses graphene as a matrix, utilizes organic matter to realize atomic-level monodispersion of metal salts, and undergoes secondary pyrolysis to finally obtain metal single-atom-doped graphene with controllable content and types. This method effectively solves the problems of low metal single-atom doping, easy agglomeration, and uncontrollable problems.

Description

A kind of preparation method of metal single atom doped graphene technical field The present invention relates to the field of metal single-atom doped carbon materials, particularly a kind of metal single-atom preparation with controllable loading Methods of doping graphene. Background technique [0002] Catalysts are widely used in all walks of life around the world, and the catalytic process is closely related to people's daily production and life. like How to prepare high-quality and high-activity catalysts is a key factor restricting the development of many industrial processes and related fields. because not The same reaction process is very different, so the types and components of catalysts required are also different, which determines the performance of catalysts. A key factor is the number and concentration of reactive sites. In general, as the catalyst particle size decreases, the catalytic activity The number and ratio of bits will increase. So how to ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of efficient, stable, easy industrialized controllable method for preparing metal single atom doped graphene, to solve the low activity of catalysts used in selective organic synthesis, metal-air batteries, pollutant degradation, etc. Problems such as poor stability and high cost, and the first realization of the preparation of high-content metal single atom doped graphene structure

Images