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Method for manufacturing flower-shaped nickel-carbon nanotube composite material

A technology of carbon nanotubes and composite materials, applied in the field of nanocomposites, can solve problems such as application limitations, achieve low cost, easy industrial application and promotion, and unique formation mechanism

Inactive Publication Date: 2013-05-15
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These disadvantages limit its application

Method used

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  • Method for manufacturing flower-shaped nickel-carbon nanotube composite material
  • Method for manufacturing flower-shaped nickel-carbon nanotube composite material
  • Method for manufacturing flower-shaped nickel-carbon nanotube composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Disperse 0.2 g of octahedral nickel oxide particles into 1.5 g of polyethylene glycol 20000, load it with a 6 cm x 3 cm x 1.5 cm ceramic ark, place it in a tube furnace, and react at 750 °C for 2 hours under nitrogen protection. After the reaction was completed, it was cooled to room temperature with the furnace under the protection of nitrogen, and the morphology of the resulting product was as follows: figure 1 and figure 2 Shown are flower-shaped nickel-carbon nanotube composite particles. image 3 The EDS spectrum of the product shows that the mass percentages of carbon and nickel are 33.67% and 66.33%, respectively. Figure 4 It is the XRD spectrum of a typical product. It can be seen that the diffraction peaks at 2θ=26.1° are the characteristic peaks of carbon, and the diffraction peaks at 2θ=44.5°, 51.8°, 76.4° etc. are respectively the (111 ), (200), (220) characteristic peaks of the crystal plane. Low-power and high-power TEM images of the product observed ...

Embodiment 2

[0046]Adopt the technology in embodiment 1, difference is: when reaction temperature is 600 ℃, and reaction time is 2 hours, the appearance of gained product is as follows Figure 7 Shown are flower-shaped nickel-carbon nanotube composite particles. This indicates that the flower-shaped nickel-carbon nanotube composite particles can also be obtained by lowering the reaction temperature (600°C).

Embodiment 3

[0048] Adopt the technology in embodiment 1, difference is: when thermal decomposition temperature is 850 ℃, and reaction time is 2 hours, the appearance of gained product is as follows Figure 8 Shown are flower-shaped nickel-carbon nanotube composite particles. This shows that raising the reaction temperature (850°C) can also obtain flower-shaped nickel-carbon nanotube composite particles.

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Abstract

The invention relates to a method for manufacturing a flower-shaped nickel-carbon nanotube composite material. The method specifically comprises the following steps of: dispersing a precursor of nickel into an organic medium which serves as a carbon source; putting the precursor and the organic medium which are loaded in a porcelain boat in a tube type furnace; reacting for 1-4 hours at the temperature of 600-900 DEG C under the protection of inert gas; furnace-cooling to the room temperature under the protection of inert gas after the reaction is ended; and obtaining the flower-shaped nickel-carbon nanotube composite material. The method for manufacturing the flower-shaped nickel-carbon nanotube composite material provided by the invention has the advantages of simple manufacture process, unique formation mechanism and easiness for industrial application and popularization; no template, surface active agent or structure guiding agent is required to be added in the reacting process, thus the method has low cost and high efficiency; and the obtained flower-shaped nickel-carbon nanotube composite material has strong magnetic response, and the appearance and the constitution of nickel-carbon nanotubes can be controlled through controlling the reacting temperature, time and proportion of materials.

Description

technical field [0001] The invention relates to the field of nanocomposite technology, in particular to a simple method for preparing a flower-shaped nickel-carbon nanotube composite material. Background technique [0002] In recent years, the application of polymorphic carbon-based magnetic composites in electromagnetic shielding and absorbing materials, rechargeable batteries, chemical catalysis materials, optoelectronic materials, and magnetic recording materials has attracted extensive attention. On the one hand, it has the advantages of abundant raw materials, cheap price, and non-toxicity; on the other hand, it has the advantages of chemical stability, good oxidation resistance, strong electrical conductivity and ferromagnetic properties, and its high specific surface area and The volume effect is expected to lead to new physicochemical properties. From the results of the novelty search, it can be seen that the predecessors have studied various forms of carbon-based m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/30
Inventor 童国秀袁进好吴文华李良超钱海生宫培军胡倩马吉
Owner ZHEJIANG NORMAL UNIVERSITY
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