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Carbon nanofiber filled with metal oxide nanoparticles and preparation method thereof

A carbon nanofiber and nanoparticle technology, which is used in the processing and application of carbon nanomaterials, can solve the difference in morphology, size processing technology and cost, adverse effects of mass transfer or surface reactivity, and space limitations around filling metal oxides. and other problems, to achieve the effect of low comprehensive cost, good application prospects, and favorable mass transfer and play.

Active Publication Date: 2016-09-21
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are differences between the two mainly in terms of morphology, size, processing technology and cost.
This mainly manifests in two aspects, one is that carbon nanotubes are easy to agglomerate and difficult to disperse, and the other is that the inner diameter of carbon nanotubes is small, and the space around the filled metal oxide is limited. have adverse effects
[0005] The liquid-phase wet chemical method is also suitable for the preparation of metal oxide-filled carbon nanofibers, but there are no literature and patent technical reports

Method used

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  • Carbon nanofiber filled with metal oxide nanoparticles and preparation method thereof
  • Carbon nanofiber filled with metal oxide nanoparticles and preparation method thereof
  • Carbon nanofiber filled with metal oxide nanoparticles and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) At room temperature, put 1g of carbon nanofiber (brand PR-19-XT-PS, American PPI company) and 30ml of ferric nitrate aqueous solution (theoretical decomposition of iron tetroxide is 1g) into a planetary high-energy ball mill for adaptation In the ball mill tank, carry out 30min ball mill process under 400rpm rotating speed, filter, dry to remove moisture, pulverize and grind to obtain ferric nitrate filled carbon nanofiber;

[0044] (2) Calcining the ferric nitrate-filled carbon nanofibers obtained in step (1) at 500° C. for 30 min in a nitrogen atmosphere to obtain the target product: carbon nanofibers filled with ferric oxide nanoparticles.

[0045] figure 1 The transmission microscope photos show that the carbon nanofiber tube has fracture marks, the port is open, and the tube is continuously filled with ferric oxide nanoparticles, the particle size is about 10nm, and it has a high filling rate. space.

Embodiment 2

[0047] (1) Put 1g of carbon nanofiber (brand PR-19-XT-PS, American PPI company) and 30ml of ferric nitrate aqueous solution (theoretical decomposition of ferric oxide is 0.5g) into a planetary high-energy ball mill at room temperature In the ball mill tank that is equipped, carry out 2h ball mill process under 200rpm rotating speed, filter, dry to remove moisture, pulverize and grind to obtain ferric nitrate filled carbon nanofiber;

[0048] (2) Calcining the ferric nitrate-filled carbon nanofibers obtained in step (1) at 250° C. for 1 h in a nitrogen atmosphere, and then calcining at 350° C. for 1 h in an air atmosphere to obtain the target product: ferric oxide nanoparticles filled carbon Nanofibers.

[0049] figure 2 The transmission microscope photo of the carbon nanofiber tube shows that the surface of the carbon nanofiber tube is etched with a porous structure (the arrow position in the enlarged figure in the lower right corner), and the tube is filled with ferric oxid...

Embodiment 3

[0051] (1) Put 1g of carbon nanofibers (brand PR-19-XT-PS, American PPI company) and 30ml of nickel nitrate aqueous solution (theoretical decomposition of nickel oxide is 1g) at room temperature into a ball mill tank adapted to the high-energy vibrating machine , carry out 1h of ball milling process, filter, dry to remove moisture, pulverize and grind to obtain nickel nitrate filled carbon nanofibers;

[0052] (2) Calcining the ferric nitrate-filled carbon nanofibers obtained in step (1) at 450° C. for 30 min in a nitrogen atmosphere to obtain the target product: carbon nanofibers filled with nickel oxide nanoparticles.

[0053] image 3 The transmission microscope photos of the carbon nanofiber tubes show fracture marks, the ports are open, and the tubes are continuously filled with nickel oxide nanoparticles with a high filling rate, and there are obvious free spaces around the nanoparticles in the tubes.

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Abstract

The invention relates to carbon nanofiber filled with metal oxide nanoparticles and a preparation method thereof. The carbon nanofiber filled with the metal oxide nanoparticles is prepared through the following steps: filling carbon nanofiber tubes with a metal salt solution under the action of milling, and carrying out drying and calcination, wherein the particle sizes of the metal oxide nanoparticles are in a range of 5 to 30 nm. The method provided by the invention has the characteristics of short filling time, capability of realizing high filling volume, simple process, greenness, environmental protection, low cost, easiness in industrialization, etc.; and the obtained carbon nanofiber has excellent mechanical and chemical stability, and has good application prospects in the fields of catalysis, sensors, electromagnetic shielding, new energy, biotechnology, high-performance composite materials, etc.

Description

technical field [0001] The invention belongs to the technical field of processing and application of carbon nanomaterials, and in particular relates to a carbon nanofiber filled with metal oxide nanoparticles and a preparation method thereof. Background technique [0002] Carbon nanomaterials such as carbon nanofibers or carbon nanotubes have a hollow structure and are nanoscale, and can be filled with nanomaterials with functional properties, thereby obtaining a hybrid material that is completely different from the filled material and the filled carbon nanomaterial. Therefore, filling technology and related application research has become a hot research topic. [0003] Carbon nanofibers and carbon nanotubes belong to nanocarbon materials and have many similarities, such as nanoscale, hollow structure, excellent electrical, magnetic, thermal and mechanical properties, and similar preparation methods. There are differences between the two mainly in terms of morphology, size,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02
CPCC01B2202/10C01B2202/36C01P2004/03C01P2004/04C01P2004/64C01P2004/80
Inventor 马传国欧气局戴培邦王亚珍卢江荣
Owner GUILIN UNIV OF ELECTRONIC TECH
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