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Network-like graphene nanometer material as well as preparation method and application thereof

A technology of nanomaterials and graphene, which is applied in the field of networked graphene nanomaterials and its preparation, can solve problems such as difficulty in industrialized production and complex processes, and achieve stable product quality, simple process flow, and low environmental pollution.

Active Publication Date: 2017-09-05
DO FLUORIDE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a network graphene nanomaterial, so as to solve the problems in the prior art that the process is complicated and it is difficult to realize industrialized production

Method used

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  • Network-like graphene nanometer material as well as preparation method and application thereof
  • Network-like graphene nanometer material as well as preparation method and application thereof
  • Network-like graphene nanometer material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The networked graphene nanomaterial of the present embodiment, technological process such as figure 1 Shown, adopt the following method to prepare:

[0037] 1) Weigh 1 kg of sodium gluconate, add it to a porcelain boat and place it in an argon atmosphere furnace, raise the temperature to 500 °C at a rate of 10 °C / min, keep it warm for 4 hours, and after cooling down to room temperature, a black lump is obtained and crushed, that is Calcined product;

[0038] 2) adding 6kg of distilled water at a temperature of 30°C to the calcined product for suction filtration and washing, repeated 8 times, and drying the washed filter residue at 60°C for 12 hours to obtain network-shaped amorphous carbon nanosheets;

[0039] 3) Under an argon atmosphere, heat up the network-like amorphous carbon nanosheets at a rate of 20°C / min to 600°C for annealing treatment, keep the temperature at 600°C for 6 hours, and obtain 50 g of network-like graphene nanosheets after cooling down to room te...

Embodiment 2

[0042] The networked graphene nanomaterial of the present embodiment, technological process such as figure 1 Shown, adopt the following method to prepare:

[0043] 1) Weigh 1kg of calcium stearate into a porcelain boat and place it in a nitrogen atmosphere furnace, raise the temperature to 1000°C at a rate of 8°C / min, keep it warm for 2 hours, and after cooling down to room temperature, a black lump is obtained and crushed, that is Calcined product;

[0044] 2) adding 2kg of distilled water at a temperature of 60°C to the calcined product for suction filtration and washing, repeated twice, and drying the washed filter residue at 60°C for 20 hours to obtain network-shaped amorphous carbon nanosheets;

[0045] 3) Under an argon atmosphere, heat the network-shaped amorphous carbon nanosheets at a rate of 15°C / min to 1600°C for annealing treatment, keep the temperature at 1600°C for 1 hour, and obtain 30g of network-shaped graphene nanosheets after cooling down to room temperatur...

Embodiment 3

[0048] The networked graphene nanomaterial of the present embodiment, technological process such as figure 1 Shown, adopt the following method to prepare:

[0049] 1) Weigh 1kg of lithium citrate into a porcelain boat and place it in an air atmosphere furnace, heat up to 700°C at a rate of 3°C / min, keep it warm for 1h, and after cooling down to room temperature, black lumps are obtained and crushed, which is calcination thing;

[0050] 2) adding 3 kg of distilled water at a temperature of 70° C. to the calcined product for suction filtration and washing, repeated 5 times, and drying the washed filter residue at 60° C. for 20 hours to obtain network-shaped amorphous carbon nanosheets;

[0051] 3) Under an argon atmosphere, heat up the network-like amorphous carbon nanosheets at a rate of 5°C / min to 900°C for annealing treatment, keep the temperature at 900°C for 1 hour, and obtain 40 g of network-like graphene nanosheets after cooling down to room temperature. piece.

[0052] ...

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Abstract

The invention relates to a network-like graphene nanometer material as well as a preparation method and application thereof. The preparation method of the network-like graphene nanometer material comprises the following steps: 1) calcining a carbon source organic matter at the temperature of 500-1000 DEG C so as to obtain a calcined matter; 2) adding water into the calcined matter for washing, and filtering so as to obtain filter residues; and 3) annealing the filter residues at the temperature of 200-1600 DEG C in a protective atmosphere, thereby obtaining the product. According to the network-like graphene nanometer material disclosed by the invention, the carbon source organic matter serves as a raw material, and the nanometer material is prepared through calcining, washing and secondary high-temperature annealing, an extra template and a template dissolving process are not involved, the process flow is simple, the equipment requirement is low, and industrial production is easily realized. Moreover, the network-like graphene nanometer material has wide interlayer spacing and excellent conductivity and presents excellent sodium storage performance.

Description

technical field [0001] The invention relates to the field of graphene preparation, in particular to a networked graphene nanomaterial and its preparation method and application. Background technique [0002] As a new type of two-dimensional carbon material, graphene has broad application prospects in the fields of electrode materials, hydrogen storage materials, biosensors, catalyst supports, energy storage materials, etc. due to its unique physical and chemical properties. The size is at the microscopic level, and there are strong π-π interactions and van der Waals forces between graphene layers, which are usually prone to agglomeration and stacking, which greatly reduces its application potential. The graphene nanosheet structure with network interpenetrating structure can reduce the agglomeration and stacking between graphene sheets, and at the same time has a unique porous structure and inherent properties of graphene sheets, so it can be used for electron / ion, gas / liqui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/184H01M4/583H01M4/587B82Y30/00
CPCB82Y30/00C01P2002/82C01P2004/03C01P2004/04C01P2004/61C01P2004/62H01M4/583H01M4/587Y02E60/10
Inventor 薛旭金侯红军阎兴斌薛峰峰杨兵军王建萍刘海霞陈江涛罗传军曹恒喜孔霞程斌斌王宗凯
Owner DO FLUORIDE CHEM CO LTD
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