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Three-dimensional carbon nanometer tube/graphene hybrid material and preparation method thereof

A carbon nanotube and graphene microplate technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of difficult structure control, harsh reaction conditions, complicated process steps, etc. To achieve the effects of less severe esterification reaction conditions, good thermal stability and high esterification rate

Inactive Publication Date: 2015-05-06
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, carbon nanotube / graphene hybrid materials prepared by physical methods (lamination method and π-π interaction) are easily affected by process conditions (ultrasonic / stirring, temperature, etc.) The structure is unstable; the hybrid material of graphene wound multi-walled carbon nanotubes by wet chemistry has harsh reaction conditions, cumbersome process steps, low yield, and acyl chlorided graphene is prone to agglomeration during the reaction process. not easy to control
[0004] It has not been reported yet to use synthetic linear polyacryloyl chloride as a bridge to connect one-dimensional hydroxylated carbon nanotubes and two-dimensional hydroxylated graphene microsheets to form three-dimensional hybrid materials.

Method used

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  • Three-dimensional carbon nanometer tube/graphene hybrid material and preparation method thereof
  • Three-dimensional carbon nanometer tube/graphene hybrid material and preparation method thereof
  • Three-dimensional carbon nanometer tube/graphene hybrid material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0045] A three-dimensional carbon nanotube / graphene hybrid material, the specific preparation method is as follows:

[0046] (1) Adopt concentrated sulfuric acid and concentrated nitric acid to process carbon nanotubes and graphene microsheets respectively:

[0047] ①Put 600mg of carbon nanotubes and 30mL of concentrated sulfuric acid in a 250mL three-necked flask, stir and dissolve for 6 hours;

[0048] ② Add 30mL of concentrated nitric acid and stir to dissolve for 0.5 hours, wherein the volume ratio of concentrated sulfuric acid to concentrated nitric acid is 1:1;

[0049]③ Move the three-neck flask into a constant temperature oil bath at 140°C, and reflux for one hour; after the reaction, dilute it with 1000mL of deionized water, let it stand for 24 hours, pour off the supernatant after standing, and use a pore size of 220nm for the precipitate The mixed fiber microporous filter membrane was subjected to vacuum filtration, and repeatedly washed with deionized water until ...

Embodiment 2

[0063] A three-dimensional carbon nanotube / graphene hybrid material, the specific preparation method is as follows:

[0064] (1) Adopt concentrated sulfuric acid and concentrated nitric acid to process carbon nanotubes and graphene microsheets respectively:

[0065] ①Put 1000mg of carbon nanotubes and 60mL of concentrated sulfuric acid in a 250mL three-neck flask, stir and dissolve for 5 hours;

[0066] ② Add 20mL of concentrated nitric acid and stir to dissolve for 1 hour, wherein the volume ratio of concentrated sulfuric acid to concentrated nitric acid is 3:1;

[0067] ③ Move the three-neck flask into a constant temperature oil bath at 140°C, and reflux for one hour; after the reaction, dilute it with 1000mL of deionized water, let it stand for 24 hours, pour off the supernatant after standing, and use a pore size of 220nm for the precipitate The mixed fiber microporous filter membrane was subjected to vacuum filtration, and repeatedly washed with deionized water until the...

Embodiment 3

[0074] A three-dimensional carbon nanotube / graphene hybrid material, the specific preparation method is as follows:

[0075] (1) Adopt concentrated sulfuric acid and concentrated nitric acid to process carbon nanotubes and graphene microsheets respectively:

[0076] ①Put 100mg of carbon nanotubes and 20mL of concentrated sulfuric acid in a 250mL three-necked flask, stir and dissolve for 5 hours;

[0077] ② Add 10mL of concentrated nitric acid and stir to dissolve for 0.5 hours, wherein the volume ratio of concentrated sulfuric acid to concentrated nitric acid is 2:1;

[0078] ③ Move the three-neck flask into a constant temperature oil bath at 140°C, and reflux for one hour; after the reaction, dilute it with 1000mL of deionized water, let it stand for 24 hours, pour off the supernatant after standing, and use a pore size of 220nm for the precipitate The mixed fiber microporous filter membrane was subjected to vacuum filtration, and repeatedly washed with deionized water until...

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Abstract

The invention discloses a three-dimensional carbon nanometer tube or a graphene hybrid material and a preparation method thereof. The preparation method of the invention is characterized by comprising the following steps: acidulating a carbon nanometer tube and a graphene micro-chip respectively by concentrated sulfuric acid and concentrated nitric acid to prepare a hydroxylated carbon nanometer tube and a hydroxylated graphene micro-chip, then performing graft reaction to the hydroxylated carbon nanometer tube and the hydroxylated graphene micro-chip with polypropylene acyl chloride prepared by atom transfer radical polymerization to obtain the hybrid material of the invention. According to the invention, synthetic linear polypropylene acyl chloride is used as a bridge to effectively connect the unidimensional hydroxylated carbon nanometer tube with the two-dimensional hydroxylated graphene micro-chip into a three-dimensional hybrid material. The hybrid is characterized by simple preparation method and technique, easy operability, good repeatability, small pollution, short period and greater possibility of realizing larger-scale production.

Description

technical field [0001] The invention relates to the technical field of preparation of new materials, in particular to a method for connecting one-dimensional hydroxylated carbon nanotubes and two-dimensional hydroxylated graphene microsheets through linear polyacryloyl chloride to form a three-dimensional hybrid material. Background technique [0002] A hybrid material is a mixture of two nano or molecular components. In recent years, it has gradually become an interdisciplinary frontier field of physical chemistry, polymer chemistry, materials science, etc., and has been widely valued by scientists from all over the world. It is a homogeneous multiphase material, which is the fourth generation of materials after single-component materials, composite materials and gradient functional materials. The size of at least one phase is on the order of nanometers, and the nanophase and other phases are compounded at the nanometer level through chemical interactions (chelate bonds, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/00C08K9/04C08K7/24C08K3/04B82Y30/00
Inventor 俞科静钱坤郏余晨吴俊青曹海建卢雪峰孙洁
Owner JIANGNAN UNIV
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