Carbonaceous hybrid powder and preparation method thereof

A hybrid and carbonaceous technology, applied in the field of nanomaterials, can solve the problems of low product quality, unfriendly environment, complex process, etc., and achieve the effect of excellent performance, non-toxic process and stable structure

Pending Publication Date: 2020-07-31
北京石墨烯研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] A main purpose of the present invention is to overcome at least one defect of the above-mentioned prior art, and provide a method for preparing a carbonaceous hybrid powder and the obtained carbonaceous hybrid powder, so as to solve the problems of the existing zero-dimensional carbon materials. The method of composite construction of dimensional carbon materials is complicated in process, high in cost, unfriendly to the environment, and the quality of the obtained products is low.

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  • Carbonaceous hybrid powder and preparation method thereof
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  • Carbonaceous hybrid powder and preparation method thereof

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preparation example Construction

[0029] figure 1 Shows a flow chart of the preparation process of carbonaceous hybrid powder according to one embodiment of the present invention, as figure 1 As shown, the preparation method of the carbonaceous hybrid powder includes the following steps: dispersing one-dimensional carbon nanotubes in water to obtain a first aqueous dispersion; mixing two-dimensional graphene oxide and zero-dimensional carbon materials and dispersing them in water , to obtain a second aqueous dispersion, the second aqueous dispersion is desolventized and granulated to obtain hybrid carbon spheres; the hybrid carbon spheres are dispersed in the first aqueous dispersion to obtain a third aqueous dispersion; and the third The aqueous dispersion is dried, reduced and pulverized to obtain a carbonaceous hybrid powder.

[0030] According to the present invention, by compounding and constructing carbon materials of different dimensions, their structures and properties can be complemented, so as to ma...

Embodiment 1

[0045] This example is used to illustrate the preparation method of the carbonaceous hybrid powder of the present invention.

[0046] 1) Mix 0.2 g of SWCNT powder with 100 ml of deionized water, perform 1 h of high-speed shear dispersion and 3 h of ultrasonic dispersion at a rotational speed of 10,000 rpm to prepare a uniformly dispersed 2 mg / mL carbon nanotube aqueous dispersion.

[0047] 2) Mix 0.5g of graphene oxide powder, 0.1g of Ketjen Black, and 150ml of deionized water, and perform magnetic stirring for 4h at a speed of 500rpm to prepare a uniformly dispersed 4mg / mL hybrid carbon material water system Dispersions. The aqueous dispersion of the hybrid carbon material was passed through a spraying device, and continuously granulated under the conditions of a working pressure of 0.1 MPa, a working temperature of 110° C., and a working flow rate of 500 mL / h to prepare hybrid carbon spheres.

[0048] 3) Blend 2 g of the hybrid carbon spheres prepared above with the carbon ...

Embodiment 2

[0051] This example is used to illustrate the preparation method of the carbonaceous hybrid powder of the present invention.

[0052] 1) Mix 0.1 g of hydroxylated carbon nanotube powder with 100 ml of deionized water, and perform 0.5 h of high-speed shear dispersion and 2 h of ultrasonic dispersion at a speed of 10,000 rpm to prepare uniformly dispersed 1 mg / mL carbon nanotubes Aqueous dispersion.

[0053] 2) Mix 0.6g of graphene oxide powder, 0.1g of Ketjen black, 0.05g of acetylene black, and 200ml of deionized water, and perform high-speed shearing for 1h at a speed of 2000rpm to prepare a uniformly dispersed 3.75mg / mL of aqueous dispersion of hybrid carbon materials. The aqueous dispersion of the hybrid carbon material was passed through a spraying device, and continuously granulated under the conditions of a working pressure of 0.3 MPa, a working temperature of 120 °C, and a working flow rate of 1000 mL / h to prepare hybrid carbon spheres.

[0054] 3) Blend 4 g of the h...

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Abstract

The invention provides carbonaceous hybrid powder and a preparation method thereof. The method comprises the steps that: dispersing one-dimensional carbon nanotubes in water to obtain a first aqueousdispersion liquid; mixing two-dimensional graphene oxide with a zero-dimensional carbon material, dispersing an obtained mixture in water to obtain a second aqueous dispersion liquid, and performing solvent removal granulation on the second aqueous dispersion liquid to obtain hybrid carbon spheres; dispersing the hybrid carbon spheres in the first aqueous dispersion liquid to obtain a third aqueous dispersion liquid; and carrying out drying, reduction and crushing treatment on the third aqueous dispersion liquid to obtain the carbonaceous hybrid powder. The method is simple in process, environmentally friendly, free of pollution and suitable for industrial large-scale production, and the obtained carbonaceous hybrid powder is stable in structure and excellent in performance and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a carbonaceous hybrid powder and a preparation method thereof. Background technique [0002] Carbon is one of the most common elements in nature. Due to its excellent thermal conductivity and electrical conductivity, it was widely used in low-end fields such as electrodes, brushes, and coke ironmaking in the early years. Since Andre Geim and Konstantin Novoselov peeled off graphene through scotch tape in 2014, various carbon materials have been given more expectations. These carbon materials include zero-dimensional carbon black, acetylene black, Ketjen black, conductive carbon black (SP), onion carbon, fullerene, carbon quantum dots, one-dimensional carbon nanotubes, carbon fibers, two-dimensional graphene, Graphyne, multilayer graphite nanofilms, three-dimensional graphite, carbon aerogel, graphene foam, etc. [0003] When these carbon materials are used alone, they wil...

Claims

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Application Information

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IPC IPC(8): C01B32/174C01B32/198H01B1/04H01M4/62B82Y30/00
CPCC01B32/174C01B32/198H01B1/04H01M4/625B82Y30/00Y02E60/10
Inventor 权滢陈韵吉武雅乐谭芝
Owner 北京石墨烯研究院有限公司
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