Preparation method of nitrogen-doped porous carbon-supported metal monoatomic material

Abstract

The present invention relates to a controllable preparation method of a nitrogen-doped porous carbon-supported metal monoatomic material, and belongs to the technical field of material science and engineering. According to the present invention, porphyrin and a metalloporphyrin are polymerized through a polymerization reaction. The proportions of the porphyrin and the metalloporphyrin are regulated to regulate a metal content (0.06-4.00wt%), and monoatomic metal types (A type, AB type, ABC type) are regulated by regulating different types of metalloporphyrins. According to the present invention, controllable preparation of a metal monoatomic material is realized with good expansibility and reproducibility; meanwhile, the problems of low metal content, few types and the like in the prior art are solved, and researches in the related fields such as the synthetic methodology of metal monoatomic materials and the like.

Description

technical field

[0001] The invention relates to the technical field of material science and engineering, in particular to a method for preparing a nitrogen-doped porous carbon-supported metal single-atom material. Background technique

[0002] Single-atom catalysts are highly dispersed metals on a certain carrier in the form of atoms, reaching the limit of metal dispersion and maximizing the utilization of atoms. Single-atom catalysts have the advantages of "isolated sites" of homogeneous catalysts and stable and easy-to-separate structures of heterogeneous catalysts. They can closely link heterogeneous catalysis and homogeneous catalysis, and serve as a bridge between heterogeneous catalysis and homogeneous catalysis. and ties. The preparation of single-atom catalysts greatly reduces the amount of precious metals used and reduces production costs. Under certain conditions, its catalytic performance, selectivity, and stability are significantly better than traditional suppo...

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