Preparation method of two-dimension nitrogen- and phosphorus-doped graphene

A technology of graphene and nitrogen and phosphorus, which is applied in the field of preparation of two-dimensional nitrogen and phosphorus 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
JINING XINRUIDA INFORMATION TECH CO LTD
View PDF6 Cites 24 Cited by
  • 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 nitrogen-phosphorus-doped graphene in order to overcome the deficiencies in the prior art such as complex preparation process and high price

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] According to the amount of 0.5 mmol sodium butyrate per gram of hydrotalcite, commercially available magnesium aluminum hydrotalcite passing through a 20-mesh sieve was added to a sodium butyrate solution with a concentration of 0.1% by mass, and stirred in a constant temperature water bath at 60°C for 5 hours. Aged for 12h to obtain the hydrotalcite suspension modified by butyric acid; then according to the corresponding amount per gram of hydrotalcite being 0.5mmol of 4-dimethylaminopyridine and 1.5mmol of n-butyl phosphate, 4-dimethylaminopyridine and Add n-butyl phosphate to the hydrotalcite suspension modified by butyric acid, stir in a constant temperature water bath at 60°C for 6 hours, separate the precipitate from the liquid, wash the precipitate twice with deionized water, dry it, and grind it. Pass through a 20-mesh sieve to obtain modified hydrotalcite powder; put the obtained modified hydrotalcite powder into a vacuum tube furnace, heat to 400°C under vacuum...

Embodiment 2

[0025] According to the amount of 1 mmol sodium butyrate per gram of hydrotalcite, commercially available nickel-aluminum hydrotalcite passed through a 50-mesh sieve was added to a sodium butyrate solution with a mass percent concentration of 1%, stirred in a constant temperature water bath at 70°C for 6 hours, and aged 24h, obtain butyric acid-modified hydrotalcite suspension; then according to the 4-dimethylaminopyridine of 1.5mmol and the n-butyl phosphate of 0.5mmol according to every gram of hydrotalcite, 4-dimethylaminopyridine and phosphoric acid Add n-butyl ester to the hydrotalcite suspension modified by butyric acid, stir in a constant temperature water bath at 70°C for 8 hours, separate the precipitate from the liquid, wash the precipitate 3 times with deionized water, dry, grind, and pass 40-mesh sieve to obtain modified hydrotalcite powder; put the obtained modified hydrotalcite powder into a vacuum tube furnace, heat to 600°C under vacuum conditions, vacuum calcin...

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 0.8 mmol sodium butyrate per gram of hydrotalcite, the hydrotalcite passed through a 20-mesh sieve was added to a sodium butyrate solution with a mass percent concentration of 0.5%, stirred in a constant temperature water bath at 60°C for 6 hours, and aged for 24 hours to obtain Butyric acid modified hydrotalcite suspension; then according to the 4-dimethylaminopyridine and the n-butyl phosphate of 0.75mmol in the corresponding amount per gram of hydrotalcite, the 4-dimethylaminopyridine and n-butyl phosphate Add it to the hydrotalcite suspension modified by butyric acid, stir in a constant temperature water bath at 70°C for 8 hours, separate the precipitate from the liquid, wash the prec...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a preparation method of two-dimension nitrogen- and phosphorus-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, adding 4-dimethyl aminopyridine and n-butyl phosphate, stirring the mixture in a constant-temperature water bath at 60-70 DEG C for 6-8 h, separating a precipitation from liquid, washing the precipitation with deionized water for 2-3 times, drying and grinding the precipitation, sieving the precipitation through a sieve being 20-40 in meshes to obtain modified hydrotalcite powder, heating the modified hydrotalcite 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 and finally heating the precipitation to 2000-2500 DEG C under the vacuum condition to perform heat treatment for 3-6 h, and cooling a product to obtain the two-dimension nitrogen- and phosphorus-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 nitrogen and phosphorus 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 monochromat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/00
Inventor 黄文艳黄勇
Owner JINING XINRUIDA INFORMATION TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap