Preparation method of two-dimension lithium-doped graphene

A graphene and hydrotalcite technology, applied in the field of preparation of two-dimensional lithium-doped graphene, can solve the problems of complex preparation process and high price, and achieve the effect of simple process and simple source.

Active Publication Date: 2015-08-05
山东一开电气设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a method for preparing two-dimensional lithium-doped g

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] According to the amount of 1 mmol sodium butyrate per gram of hydrotalcite, commercially available magnesium aluminum hydrotalcite passing through a 50-mesh sieve was added to a sodium butyrate solution with a mass percent concentration of 0.1%, stirred in a constant temperature water bath at 70°C for 6 hours, and aged 24h, then separate the precipitate from the liquid, wash the precipitate 3 times with deionized water, and dry to obtain sodium butyrate-modified hydrotalcite; take 1g of dried sodium butyrate-modified hydrotalcite, add to Stir in 5ml of 15% n-butyllithium pentane solution by mass percentage for 3 hours, and vacuum-dry at 80°C for 30 hours from the addition to the completion of the stirring, grind, and pass through a 40-mesh sieve to obtain a powder; put the obtained powder in into a vacuum tube furnace, heated to 600°C under vacuum conditions, vacuum calcined for 4 hours, and cooled to room temperature; the calcined powder was added to a hydrochloric acid...

Embodiment 2

[0025] According to the amount of 0.5mmol sodium butyrate per gram of hydrotalcite, commercially available nickel-iron hydrotalcite passed through a 20-mesh sieve was added to a sodium butyrate solution with a mass percent concentration of 1%, stirred in a constant temperature water bath at 60°C for 5 hours, and aged 12h, then separate the precipitate from the liquid, wash the precipitate twice with deionized water, and dry to obtain sodium butyrate-modified hydrotalcite; take 1g of dried sodium butyrate-modified hydrotalcite, add to Stir in 3ml of 10% n-butyllithium pentane solution by mass percentage for 2 hours, and dry it in vacuum at 60°C for 15 hours under nitrogen protection from the addition to the completion of stirring, grind, and pass through a 20-mesh sieve to obtain a powder; put the obtained powder in into a vacuum tube furnace, heated to 400°C under vacuum conditions, vacuum calcined for 2 hours, and cooled to room temperature; the calcined powder was added to a ...

Embodiment 3

[0027] Firstly, the magnesium-aluminum hydrotalcite was synthesized according to the literature (hydrothermal synthesis of magnesium-aluminum hydrotalcite, Applied Chemistry, 2001, 18, 70-72); the hydrotalcite was passed through a 40-mesh sieve for later use.

[0028]According to the amount of 1 mmol sodium butyrate per gram of hydrotalcite, the prepared magnesium aluminum hydrotalcite passed through a 40-mesh sieve was added to a sodium butyrate solution with a concentration of 0.2% by mass, and stirred in a constant temperature water bath at 65°C for 6 hours. Aging for 24 hours, then separating the precipitate from the liquid, washing the precipitate 3 times with deionized water, and drying to obtain sodium butyrate-modified hydrotalcite; take 1g of dried sodium butyrate-modified hydrotalcite, add Stir in 5ml of 15% n-butyllithium pentane solution by mass percentage and stir for 3 hours, from the addition to the completion of the stirring, under nitrogen protection, vacuum dr...

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PUM

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Abstract

The invention discloses a preparation method of two-dimension lithium-doped graphene. The preparation method particularly includes following steps: adding hydrotalcite to a proper amount of a sodium butyrate solution, stirring the mixture, aging the mixture, performing separation and drying to obtain sodium butyrate-modified hydrotalcite, adding the sodium butyrate-modified hydrotalcite to a pentane solution of n-butyl lithium under protection of nitrogen, stirring, drying and grinding the mixture to obtain a powder, heating the powder in a vacuum tubular furnace to 400-600 DEG C under a vacuum condition for calcining the powder for 2-4 h, adding the calcined powder to a hydrochloric acid solution, separating the precipitation, heating the precipitation to 2000-2500 DEG C under the vacuum condition to perform heat treatment for 3-6 h, and cooling the product to obtain the two-dimension lithium-doped graphene. The preparation method is simple in raw materials and is mild in conditions.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a preparation method of two-dimensional lithium-doped graphene. Background technique [0002] In the research and development of new materials, dimensionality has become an important parameter for modulating the structure and properties of matter. When the material changes from three-dimensional structure to two-dimensional, one-dimensional and zero-dimensional, its geometric structure and physical and chemical properties will change significantly. Two-dimensional nanomaterials have been widely used in many fields such as solid-state nanodevices, sensing and functional thin films due to their anisotropy and unique optoelectronic properties. In particular, highly oriented graphitic carbon 001 has a unique resistance to radiation, which is expected to be used in medical low-energy neutron radiation-resistant materials, X-Ray monochromator radiation-res...

Claims

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Application Information

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IPC IPC(8): C01B31/00
Inventor 彭明国李华杰黄文艳
Owner 山东一开电气设备有限公司
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