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Preparation method of layered nanoscale material

A layered nanomaterial, two-dimensional layered technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as polluted environment and complex preparation process, and achieve uniform morphology, The method is simple and easy to implement, and the structure is regular

Inactive Publication Date: 2016-06-22
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material preparation process involved in this method is relatively complicated, and substances such as strong acids and strong oxidants are used, which pollute the environment.

Method used

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  • Preparation method of layered nanoscale material
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  • Preparation method of layered nanoscale material

Examples

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Embodiment 1

[0032] A preparation method of CoP / graphene material, comprising the following steps:

[0033] (a) Add nitrile amine, rock sugar and cobalt trichloride in a molar ratio of 40:1:0.001 into deionized water at 95°C, and stir until completely dissolved to obtain a mixed solution;

[0034] (b) adding phosphoric acid to the mixed solution described in step (a), the molar ratio of phosphate radical and nitrile amine is 1:1, stirring until uniformly mixed, and then rotary evaporating and drying;

[0035] (c) In a tube furnace, under the protection of nitrogen, the temperature was raised to 600°C at 5°C / min, kept for 2 hours, then raised to 900°C at 5°C / min, kept for 2 hours, and taken out after cooling to obtain CoP / Graphene composites.

[0036] prepared materials such as figure 1 As shown, the material has a block structure macroscopically, the sheets are peeled off, and the load is on top of the sheets.

Embodiment 2

[0038] A preparation method of MoP / graphene material, comprises the following steps,

[0039] (a) Add urea, glucose and molybdenum pentachloride in a molar ratio of 30:1:0.05 into deionized water at 95°C, and stir until completely dissolved to obtain a mixed solution;

[0040] (b) Add phosphoric acid to the mixed solution described in step (a), the molar ratio of phosphate radical and urea is 1:0.5, stir until mixed evenly and then dry by rotary evaporation;

[0041] (c) In a tube furnace, under the protection of nitrogen, the temperature was raised to 600°C at 5°C / min, kept for 2 hours, then raised to 900°C at 5°C / min, kept for 2 hours, and taken out after cooling to obtain MnP / Graphene composites.

[0042] prepared materials such as figure 2 As shown, the material as a whole presents a neatly arranged exfoliated sheet structure, with uniform and fine nanoparticles loaded on it.

Embodiment 3

[0044] A kind of preparation method of NiP / graphene composite material, comprises the following steps,

[0045] (a) Add urea, glucose and nickel dichloride at a molar ratio of 30:1:0.05 to deionized water at 95°C, and stir until completely dissolved to obtain a mixed solution;

[0046] (b) Add phosphoric acid to the mixed solution described in step (a), the molar ratio of phosphate radical and urea is 1:0.5, stir until mixed evenly and then dry by rotary evaporation;

[0047] (c) In a tube furnace, under the protection of nitrogen, the temperature was raised to 600°C at 5°C / min, kept for 2 hours, and then raised to 900°C at 5°C / min, kept for 2 hours, cooled and taken out to obtain NiP / Graphene composites.

[0048] prepared materials such as image 3 As shown, the material as a whole presents a neatly arranged exfoliated sheet structure, with uniform and fine nanoparticles loaded on it.

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Abstract

The invention discloses a layered nanoscale material and a preparation method of a composite material thereof. The preparation method comprises the following three steps: firstly, uniformly mixing a layered polymer and a precursor of a layered material to be synthesized, and polymerizing the layered polymer precursor to obtain a layered compound; secondly, using the layered compound as a two-dimensional nanoreactor, and synthesizing the layered nanoscale material and its composite material through a nucleation growth mode under confinement and induction action of the two-dimensional confinement space; and finally, decomposing the layered polymer through high-temperature treatment to obtain the required layered material and its nanocomposite. The method has wide universality. The nanocomposite of the layered material containing graphene, doped graphene and transition metal carbide, nitride, phosphide, sulfide and boride can be prepared. The method is simple and feasible. The prepared layered material has a neat structure and has potential application value in application fields of catalysis, energy storage and the like.

Description

technical field [0001] The invention relates to the field of nanomaterial preparation, in particular to a method for preparing layered nanomaterials. Background technique [0002] Graphene and its nanocomposites, with their superior physical and chemical properties, have attracted widespread attention from academia and industry, and have shown good application prospects in the fields of catalysis, sensing, and energy storage. [0003] At present, the preparation methods of graphene mainly include "top-down" chemical vapor deposition method and "bottom-up" physical or chemical exfoliation method. The former uses a carbon-containing atmosphere to deposit on the surface of a metal catalyst to precipitate a graphene carbon layer, and then peels graphene from the metal surface by a certain method to obtain a graphene material. This method is mainly used to prepare high-quality graphene materials, but it is difficult to achieve batch preparation of graphene. The bottom-up physic...

Claims

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Application Information

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IPC IPC(8): C01B31/04B82Y30/00
Inventor 孙公权金具涛姜鲁华
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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