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Method for preparing tungsten disulfide nanorod

A tungsten disulfide, nanorod technology, applied in chemical instruments and methods, nanotechnology, nanotechnology, etc., can solve problems such as harsh raw material requirements and unsuitable for large-scale industrial production.

Active Publication Date: 2014-12-10
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has strict requirements on raw materials and is not suitable for large-scale industrial production

Method used

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  • Method for preparing tungsten disulfide nanorod
  • Method for preparing tungsten disulfide nanorod
  • Method for preparing tungsten disulfide nanorod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for preparing tungsten disulfide nanorods, specifically comprising the following steps:

[0026] a. According to the volume ratio of water: ethanol = 7:13, water and ethanol are configured as a mixed solvent; 30 mg of tungsten disulfide powder is added to 20 ml of the above mixed solvent, and the hydrothermal synthesis reaction is carried out at 200 ° C for 10 h;

[0027] b. The reacted solution was sonicated for 1 h at a power of 400 W, and centrifuged at 500 rpm for 30 min to obtain tungsten disulfide nanorods.

[0028] figure 1 Low-resolution transmission electron microscopy images of tungsten disulfide nanorods prepared for this example, from figure 1 It can be seen from the results that the length of the tungsten disulfide nanorods prepared in this example is about 100-1000 nm. figure 2 High-resolution transmission electron microscopy images of tungsten disulfide nanorods prepared for this example, from figure 2 It can be seen from the figure that the...

Embodiment 2

[0030] A method for preparing tungsten disulfide nanorods, specifically comprising the following steps:

[0031] a. According to the volume ratio of water: ethanol = 7:13, water and ethanol are configured as a mixed solvent; 30 mg of tungsten disulfide powder is added to 20 ml of the above mixed solvent, and the hydrothermal synthesis reaction is carried out at 180 ° C for 15 h;

[0032] b. The reacted solution was sonicated for 1 h at a power of 400 W, and centrifuged at 500 rpm for 30 min to obtain tungsten disulfide nanorods.

Embodiment 3

[0034] A method for preparing tungsten disulfide nanorods, specifically comprising the following steps:

[0035] a. According to the volume ratio of water: ethanol = 1:1, water and ethanol are configured as a mixed solvent; 30 mg of tungsten disulfide powder is added to 20 ml of the above mixed solvent, and the hydrothermal synthesis reaction is carried out at 200 ° C for 10 h;

[0036] b. The reacted solution was sonicated for 1 h at a power of 400 W, and centrifuged at 500 rpm for 30 min to obtain tungsten disulfide nanorods.

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Abstract

The invention discloses a method for preparing a tungsten disulfide nanorod. The method comprises the following steps: a, adding tungsten disulfide powder to a mixed solvent of water and ethanol and carrying out hydrothermal synthesis reaction; and b, carrying out ultrasonic treatment and centrifugation on the reacted solution, thus obtaining the tungsten disulfide nanorod. According to the preparation method, the conditions are mild, reaction is friendly to the environment, used reagents are novel and simple; therefore, the preparation method is suitable for large-scale preparation and industrial production and has an application prospect.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a method for preparing tungsten disulfide nanorods. Background technique [0002] WS 2 It is a typical layered transition metal dichalcogenide with van der Waals interaction between layers. Nanostructured WS 2 It has enhanced catalytic performance, excellent light conduction and excellent friction performance, and can be used in solar cells and field effect transistors. WS 2 The sonochemical method of nanorods has been reported in the literature (Nikotenko, SI, J. Mater. Chem. 2002, 12, 1450-1452.), which uses W(Co) 6 Reaction under sulfur inert conditions with excess of xylene methane solvent. [0003] After retrieval, the Chinese invention patent with the publication number CN1793304A discloses "tungsten disulfide nanorods used as friction-reducing additives and its preparation method". It is characterized in that it includes the following ste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G41/00B82Y30/00B82Y40/00
Inventor 杨志徐明瀚何桂丽魏浩张亚非
Owner SHANGHAI JIAO TONG UNIV