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Tungsten oxide one-dimensional nano material and preparation method thereof

A tungsten oxide nanowire and nanomaterial technology, applied in the field of nanomaterials, can solve the problems of complex process and small output, and achieve the effects of simple operation process, low cost and easy availability of raw materials

Inactive Publication Date: 2010-12-08
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many preparation methods for one-dimensional tungsten oxide nanomaterials, there are generally disadvantages such as complex process and low output.
Therefore, it is necessary to further explore new practical preparation methods. At present, there is no direct preparation of WO by metal elemental powder and water under hydrothermal reaction conditions. 3 Related reports about nanowires

Method used

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  • Tungsten oxide one-dimensional nano material and preparation method thereof
  • Tungsten oxide one-dimensional nano material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0016] The dosage of tungsten elemental powder and distilled water is: 0.01g tungsten elemental powder and 37.5ml distilled water, the mass ratio is 1:3750.

[0017] Mix the tungsten elemental powder and distilled water, stir fully in a stainless steel autoclave with 50ml polytetrafluoroethylene liner, the solution filling volume is 75% of the container, react at 423K for 1 day, and then filter, at 323K drying at high temperature for 12 hours to obtain the tungsten oxide one-dimensional nanomaterial.

Embodiment 2

[0019] The dosage of tungsten elemental powder and distilled water is: 0.05g tungsten elemental powder and 30ml distilled water, the mass ratio is 1:600.

[0020] Mix tungsten elemental powder and distilled water, fully stir in a stainless steel autoclave lined with polytetrafluoroethylene, the solution filling degree is 60%, react at a temperature of 478K for 30 days, then filter and dry at a temperature of 373K 24h to obtain the tungsten oxide one-dimensional nanomaterial.

Embodiment 3

[0022] The dosage of tungsten elemental powder and distilled water is: 0.08g tungsten elemental powder and 30ml distilled water, the mass ratio is 1:375.

[0023] Mix tungsten elemental powder and distilled water, fully stir in a stainless steel autoclave with a polytetrafluoroethylene liner, the solution filling degree is 60%, react at a temperature of 450K for 8 days, then filter and dry at a temperature of 333K 12h to obtain the tungsten oxide one-dimensional nanomaterial.

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Abstract

The invention provides a tungsten oxide one-dimensional nanometer material and a preparation method thereof. The material has a length of hundreds of nanometers to a couple of microns and a width of 5-20 nanometers. The method comprises the steps of: mixing tungsten simple substance powder with distilled water directly, fully stirring in a high pressure kettle, reacting at the temperature of 423-478K for 1-30 days, filtering and drying for 12-24h at the temperature of 323-373K to obtain the tungsten oxide one-dimensional nanometer material. By adopting the simple hydrothermal method in the preparation, the method has the advantages of simple operational process, easily obtained raw material, low cost, nontoxic and harmless solvent, environment friendly and large-amount synthesis. The prepared WO3 nanowire has excellent performance and versatility, which is suitable for large-scale popularization and has remarkable economic benefit.

Description

technical field [0001] The invention belongs to nanometer materials, and more specifically relates to a tungsten oxide one-dimensional nanometer material and a preparation method thereof. Background technique [0002] Tungsten oxide is a very good catalyst and high-temperature superconducting material. It is also used to make electrochromic windows, infrared switches, optical devices for writing, reading and wiping, gas-sensitive, humidity-sensitive and temperature-sensitive components, etc. At the same time, tungsten oxide nanowires have excellent field emission properties and can be used as a preparation material for WS 2 Structural precursors of nanotubes. Tungsten oxide whiskers were initially studied by reacting a mixture of argon and water vapor with tungsten wire at 1000-1200°C. In recent years, there are many methods for preparing one-dimensional tungsten oxide nanomaterials, such as template method, calcined mesoporous precursor method, organic solution synthesis ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G41/02
Inventor 魏明灯罗海燕魏可镁
Owner FUZHOU UNIV