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Method for synthesizing titanium carbide nano wires by using plant fibers

A synthesis method and natural plant fiber technology, applied in the field of synthesizing titanium carbide nanowires with plant fibers, can solve the problems of high production cost and unsuitability for industrial production, and achieve the effect of simple method, low cost and industrialization

Active Publication Date: 2012-05-30
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this preparation method uses carbon nanotubes as raw materials, and the production cost is relatively high, so it is not suitable for industrial production.

Method used

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  • Method for synthesizing titanium carbide nano wires by using plant fibers

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] First, 0.319g of nickel nitrate hexahydrate, 0.491g of titanium dioxide powder and 0.08g of sodium chloride were uniformly dispersed in 20ml of deionized water, stirred for 30 minutes, and 0.0657g of purified cotton fibers were added. After soaking for 1 hour, the cotton fiber is separated from the solution, and placed in an oven at 80° C. to dry it. The bamboo fiber after being dried is placed in the high-temperature fixed-bed reaction furnace that temperature is 1300 ℃, feeds the argon gas that flow is 300sccm as shielding gas, obtains final product after reacting 1 hour, is a large amount of titanium carbide nanowires (see figure 1 ).

Embodiment 2

[0019] First, 0.608g ferric nitrate nonahydrate, 0.177g titanium powder, 0.296g titanium dioxide powder and 0.06g sodium chloride were evenly dispersed in 15ml deionized water, stirred for 30 minutes, and then 0.088g purified hemp fiber was added. After soaking for 1 hour, the cotton fiber is separated from the solution, and placed in an oven at 80° C. to dry it. Put the dried cotton fibers in a high-temperature fixed-bed reaction furnace with a temperature of 1350°C, and pass in argon gas with a flow rate of 300 sccm as a protective gas. After 2 hours of reaction, the final product is obtained, and the appearance of the product is similar to figure 1 .

Embodiment 3

[0021] First, 0.461g of nickel nitrate hexahydrate, 0.355g of titanium dioxide powder, 0.213g of titanium powder and 0.09g of sodium chloride were evenly dispersed in 20ml of deionized water, stirred for 45 minutes, and then 0.095g of purified hardwood fiber was added. After soaking for 1 hour, the hardwood wood fiber is separated from the solution, and placed in an oven with a temperature of 80° C. to dry it. Put the dried hardwood wood fibers in a high-temperature fixed-bed reaction furnace with a temperature of 1300 ° C, and feed argon with a flow rate of 300 sccm as a protective gas. After reacting for 1.5 hours, the final product is obtained, and the appearance of the product is similar to figure 1 .

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Abstract

The invention discloses a method for synthesizing titanium carbide nano wires by using natural plant fibers. Purified natural plant fibers are used as a carbon source and a template; one or combination of titanium powder, titanium oxide or titanium sheet is used as a titanium source; Fe, Co, Ni, Cu or La metal is used as a catalyst; and sodium chloride is used as a fluxing agent. The method comprises the following steps of: adsorbing the sodium chloride, the titanium source and metal ions corresponding to the metal catalyst to the surface of the natural plant fibers by an immersion method, separating and drying the natural plant fibers to obtain the natural plant fibers adsorbing the titanium source, the sodium chloride and the metal ions, and reacting the natural plant fibers adsorbing the titanium source, the sodium chloride and the metal ions for 1 to 4 hours at the temperature of between 900 and 1,600 DEG C under the protection of chemical inert gas to obtain the titanium carbide nano wires. The method fully utilizes the low-cost natural plant fibers as the template and the carbon source at the same time, so the method is simple, has low cost and is easy for industrialized production.

Description

(1) Technical field [0001] The invention relates to a method for synthesizing titanium carbide nanowires by utilizing plant fibers. (2) Background technology [0002] Titanium carbide is iron-gray crystal with metallic luster and weak magnetism. It also has some properties similar to metals, high melting point (3450°C), high boiling point (4300°C), hardness second only to diamond, good thermal conductivity and electrical conductivity, electrical conductivity decreases with increasing temperature, at 1.1K exhibit superconductivity. Its high thermal hardness, small friction coefficient, and low thermal fraction make the tools made of TiC have higher cutting speed and longer service life than those made of other materials. Because of its high hardness, TiC is an important raw material for cemented carbide. In addition, its extremely high hardness can also be used as anti-wear parts such as bearings and nozzles. TiC has high melting point, low vapor pressure and small work f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/30B82B3/00
Inventor 李奕坪陶新永张文魁黄辉甘永平
Owner ZHEJIANG UNIV OF TECH