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Graphite-like supramolecular and preparation method thereof, doped graphene and preparation method thereof

A supramolecular and graphene technology, applied in the direction of graphene, single-layer graphene, chemical instruments and methods, etc., can solve the problems of preparing doped graphene, controlling graphene, not being disclosed, etc., and achieving low price and easy preparation. Effect

Active Publication Date: 2022-02-01
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Graphite-like materials are a general term for materials with a two-dimensional single-layer or few-layer structure, and there is no disclosure of using graphite-like materials to prepare doped graphene to control the state of heteroatoms in graphene.

Method used

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  • Graphite-like supramolecular and preparation method thereof, doped graphene and preparation method thereof
  • Graphite-like supramolecular and preparation method thereof, doped graphene and preparation method thereof
  • Graphite-like supramolecular and preparation method thereof, doped graphene and preparation method thereof

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Embodiment 1

[0037] The invention provides a preparation method of a graphite-like supramolecular, comprising the following steps:

[0038] S1. Dissolving metal salts and organic ligands in a solvent, heating and reacting to obtain graphite-like supramolecules;

[0039] Wherein, the metal salt includes one or more of transition metal nitrates, halide salts, acetates, sulfates and phosphates;

[0040] Organic ligands include one or more of porphyrin, pyridine, bipyridine, o-phenanthroline, and calixarene;

[0041] The solvent includes one or more of water, methanol, ethanol, propanol, ethylene glycol, acetone, tetrahydrofuran, dimethylsulfoxide, dimethylacetamide and dimethylformamide.

[0042] It should be noted that in the examples of the present application, host-guest chemistry is used to synthesize graphite-like supermolecules with a carbon-rich layered structure separated by spacer molecules. The transition metals used in the examples of the present application are Co, Ni, Fe, One o...

Embodiment 2

[0055] Below with nickel nitrate hexahydrate as metal salt, further illustrate the preparation method of the embodiment of the application graphite-like supramolecular and doped graphene.

[0056] A kind of preparation method of graphitic supramolecular, comprises the following steps: the organic ligand (NH 4 ) 5 · [p-sulfonato-calix[4]arene] is ammonium p-sulfonate calix[4]arene (one of the hydroxyl groups is deprotonated) and 0.5076g of organic ligand N,N'-dioxide-2,2 '-Bipyridine was dissolved in 15mL of hot water solvent at 50-60°C and kept for 1-2h, then the solution was cooled to room temperature and the solvent was completely evaporated at room temperature to obtain a green graphite-like supramolecule.

[0057] In the embodiment of the present application, the graphite-like supramolecules were synthesized through the liquid phase and the liquid phase. The design of the graphite-like supramolecules is by introducing large-sized spacer molecules [Ni(bpdo) 2 2H 2 O] 2+...

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Abstract

The invention provides a graphite-like supramolecule and a preparation method thereof, doped graphene and a preparation method thereof, and a preparation method of a graphite-like supramolecule, comprising the following steps: dissolving a metal salt and an organic ligand in a solvent, heating and reacting , to obtain graphite-like supramolecules; wherein, the metal salts include one or more of transition metal nitrates, halides, acetates, sulfates, and phosphates; the organic ligands include porphyrin, pyridine , bipyridine, ortho-phenanthroline; the solvent includes water, methanol, ethanol, propanol, ethylene glycol, acetone, tetrahydrofuran, dimethyl sulfoxide, dimethylacetamide and two One or more of methyl formamide. The invention utilizes graphite-like supermolecules to undergo in-situ pyrolysis and exfoliation at high temperatures to form graphene, and the heteroatom content and position of the obtained graphene can be adjusted.

Description

technical field [0001] The invention relates to the technical field of graphene material preparation, in particular to a graphite-like supermolecule and a preparation method thereof, doped graphene and a preparation method thereof. Background technique [0002] Graphene is a carbon atom with sp 2 The hybridization method forms a two-dimensional honeycomb structure with a single atomic layer thickness, and has unique properties such as huge surface area, electrical conductivity, and chemical stability, and has strong application prospects in the fields of catalysis, electronics, and communications. [0003] The preparation of graphene is generally realized by physical exfoliation or chemical exfoliation method, wherein the physical exfoliation method is difficult to scale up, and the chemical exfoliation method has serious environmental protection problems. [0004] In order to achieve different functions, metal or nonmetal heteroatoms need to be introduced. In order to pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/19C01B32/205
CPCC01B32/19C01B32/205C01B2204/32C01B2204/02C01B2204/04
Inventor 蔡卫卫周顺发时佳维李静
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)