Preparation method of three-dimensional-structure graphene/carbon nanotube hybrid carbon material

A technology of carbon nanotubes and three-dimensional structures, applied in the direction of carbon nanotubes, graphene, nanocarbon, etc., can solve problems such as large contact resistance and limited application fields, and achieve reduced junction resistance, no environmental pollution, and low cost Effect
CN106629668AActive Publication Date: 2017-05-10JIANGHAN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGHAN UNIVERSITY
Publication Date
2017-05-10

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Abstract

The invention discloses a preparation method of a three-dimensional-structure graphene / carbon nanotube hybrid carbon material. The preparation method comprises the following steps: sufficiently dissolving a divalent metal salt, a carbon source precursor and a precipitant in water to obtain a mixed solution; carrying out hydrothermal reaction on the mixed solution to obtain a suspension; sequentially carrying out centrifugation, washing and drying, and taking the dried brown powdery precursor; mixing and grinding the precursor and a cyanamide compound, and carrying out carbonization to obtain the black powder; and finally, carrying out pickling treatment on the black powder to obtain the three-dimensional-structure graphene / carbon nanotube hybrid carbon material. According to the preparation method, the self-template in-situ carbonization catalytic technique is adopted to prepare the three-dimensional-structure graphene / carbon nanotube hybrid carbon material. The carbon nanotubes directly grow out of the graphene surface, and the carbon nanotubes and graphene are connected through sp2 covalent carbon bonds instead of simple physical mixing. The method is simple, is low in cost, and is suitable for large-scale production.
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Description

technical field

[0001] The invention relates to the technical field of nanomaterials, in particular to a method for preparing a three-dimensional structure graphene / carbon nanotube hybrid carbon material. Background technique

[0002] Carbon nanomaterials have always been a hot spot in scientific research. There are many kinds of carbon materials, which can be divided into zero-dimensional, one-dimensional, two-dimensional and three-dimensional carbon materials according to their dimensions. For example, fullerenes with a zero-dimensional structure were discovered in 1985; in 1991, Japanese scientist SumioIijima discovered carbon nanotubes with a one-dimensional structure; in 2004, two Russian physicists, Andrei Geim and Kostya Novoselov obtained two dimensional single-layer graphene. Graphene is a carbon atom SP 2 Hybridization forms a planar film with a hexagonal honeycomb lattice, only one carbon atom thick 2D carbon material, and other dimensional carbon materials such...

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
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