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FeP/graphene composite material and preparation method thereof

A composite material and graphene technology, applied in electrical components, battery electrodes, circuits, etc., can solve problems such as difficult effective control and long process, and achieve the effect of regular structure, easy scale-up production, and simple and easy method

Active Publication Date: 2016-06-01
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

This preparation method has a long process, and the preparation process is affected by many factors, so it is difficult to effectively control

Method used

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  • FeP/graphene composite material and preparation method thereof
  • FeP/graphene composite material and preparation method thereof
  • FeP/graphene composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A kind of preparation method of FeP / graphene composite material, comprises the following steps,

[0027] (a) Add melamine, glucose and ferric chloride in a molar ratio of 20:1:0.001 into deionized water at 95°C, and stir until completely dissolved to obtain a mixed solution;

[0028] (b) Add phosphoric acid to the mixed solution described in step (a), the molar ratio of phosphate and melamine is 1:1, stir until evenly mixed, and then dry by rotary evaporation to obtain melamine phosphate precipitation;

[0029] (c) In a tube furnace, under the protection of nitrogen, the temperature was raised to 600°C at 5°C / min, and kept for 2 hours, then raised to 900°C at 5°C / min, kept for 2 hours, and taken out after cooling to obtain FeP / Graphene composites.

[0030] From figure 1 It can be seen that the obtained material is very regular and consists of neatly arranged exfoliated lamellar material ( figure 1 A)( figure 1 B). The thickness of these exfoliated sheets is about ...

Embodiment 2

[0034] A kind of preparation method of FeP / graphene composite material, comprises the following steps,

[0035] (a) Add melamine, glucose and ferric chloride in a molar ratio of 10:1:0.001 into deionized water at 95°C, and stir until completely dissolved to obtain a mixed solution;

[0036] (b) Add concentrated (35%) phosphoric acid to the mixed solution described in step (a), the molar ratio of phosphate and melamine is 4:5, stir until evenly mixed, then rotary evaporate and dry to obtain melamine phosphate precipitation;

[0037] (c) In a tube furnace, under the protection of nitrogen, the temperature was raised to 550°C at 5°C / min, kept for 2 hours, then raised to 950°C at 5°C / min, kept for 2 hours, and taken out after cooling to obtain FeP / Graphene composites.

[0038] The number of layers of graphene in the FeP / graphene composite material obtained in this embodiment is between 5-10 layers, the nanoparticles are FeP and carbon-coated FeP, the loading of nanoparticles is ...

Embodiment 3

[0040] A kind of preparation method of FeP / graphene composite material, comprises the following steps,

[0041] (a) Add melamine, glucose and ferric chloride with a molar ratio of 8:1:0.002 into deionized water at 95°C, and stir until completely dissolved to obtain a mixed solution;

[0042] (b) Add concentrated (35%) phosphoric acid to the mixed solution described in step (a), the molar ratio of phosphate and melamine is 2:1, stir until evenly mixed and then dry by rotary evaporation to obtain melamine phosphate precipitation;

[0043] (c) In a tube furnace, under the protection of argon, raise the temperature to 600°C at 10°C / min, keep it for 2 hours, then raise the temperature to 1000°C at 20°C / min, keep it for 10 hours, and take it out after cooling to get FeP / graphene composites.

[0044] The number of layers of graphene in the FeP / graphene composite material obtained in this embodiment is between 10-20 layers, the nanoparticles are FeP and carbon-coated FeP, the loadi...

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Abstract

The invention discloses an FeP / graphene composite material and a preparation method thereof. The material is formed by FeP nano-particles mixed into stripped graphene and / or carbon-coated FeP nano-particles, wherein 1-20 graphene layers are formed; the diameters of the nano-particles are 2-50nm; the growth process is generated under induction and restriction of an in-situ formed 'two-dimensional nano-reactor'; and the 'two-dimensional nano-reactor' is decomposed at a high temperature to obtain the FeP / graphene composite material. The method is simple, feasible and easy to amplify; the prepared composite material is regular in structure; and the nano-particles are uniform in size distribution and have good electro-catalytic properties.

Description

technical field [0001] The invention belongs to the field of composite materials, and mainly relates to a FeP / graphene composite material; the invention also relates to a preparation method of the FeP / graphene composite material. Background technique [0002] Graphene / inorganic nanocomposites have attracted extensive attention from academia and industry because of the combination of graphene's advantages such as high specific surface area, high structural stability, and high electrical conductivity, as well as the advantages of nanoscale and surface effects of inorganic nanomaterials. And it is widely used in sensing, catalysis, energy storage and other technical fields. [0003] Although graphene has the characteristics of high specific surface area, its layers are easily re-stacked into graphite, which loses the characteristics of high specific surface area. However, due to the highly unsaturated surface atomic coordination of nanomaterials, which have high surface energy...

Claims

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Application Information

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IPC IPC(8): H01M4/36
CPCY02E60/10
Inventor 孙公权金具涛姜鲁华
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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