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Preparation method of urchin-like tin selenide

A tin selenide, sea urchin-like technology, applied in the field of preparation of functional new materials, can solve the problem of low energy density of supercapacitors and achieve excellent performance

Inactive Publication Date: 2018-02-16
王子韩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect that the energy density of the current supercapacitor is low, by using a simple method to prepare an electrode material for a supercapacitor with high energy density and cycle life

Method used

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  • Preparation method of urchin-like tin selenide
  • Preparation method of urchin-like tin selenide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] First, take 0.54g of tin tetrachloride, and disperse it uniformly in 60ml of isopropanol solution, then weigh 1.0g of selenium dioxide, add it to the above-mentioned isopropanol solution that is stirred uniformly, until stirring evenly; secondly, add 1ml of oleic acid to the uniformly mixed isopropanol solution, and continue to stir for 5 minutes; then add 0.5ml of oleylamine to the above-mentioned uniformly mixed solution, and continue to stir for 5 minutes; Transfer to a hydrothermal reaction kettle for reaction, wherein the reaction temperature is 120°C and the time is 12 hours. After the reaction is completed, cool to room temperature, separate and wash the obtained product and then dry it at 80°C.

Embodiment 2

[0027] First, take 1.21g of tin tetrachloride, and disperse it evenly in 150ml of isopropanol solution, then weigh 2.54g of selenium dioxide, add it to the above-mentioned isopropanol solution that is stirred evenly, until stirring evenly; secondly, add 2ml of oleic acid to the uniformly mixed isopropanol solution, and continue to stir for 6 minutes; then add 1.2ml of oleylamine to the above-mentioned uniformly mixed solution, and continue to stir for 6 minutes; Transfer to a hydrothermal reaction kettle for reaction, wherein the reaction temperature is 120°C and the time is 12 hours. After the reaction is completed, cool to room temperature, separate and wash the obtained product and then dry it at 80°C.

Embodiment 3

[0029] First, take by weighing 1.21g of stannous chloride, and disperse it uniformly in 150ml ethylene glycol solution, then weigh 2.54g of selenium dioxide, add it to the above-mentioned ethylene glycol solution that is stirred evenly, until stirring evenly; secondly, add 2ml of oleic acid to the well-mixed ethylene glycol solution, and continue to stir for 6 minutes; then add 1.2ml of oleylamine to the above-mentioned well-mixed solution, and continue to stir for 6 minutes; Transfer to a hydrothermal reactor for reaction, wherein the reaction temperature is 140°C and the time is 12 hours. After the reaction is completed, cool to room temperature, separate and wash the obtained product and then dry it at 80°C.

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Abstract

The invention relates to a preparation method of urchin-like tin selenide, comprising the main steps of dissolving suitable tin salt in an alcohol solvent, adding suitable selenium salt into the aforementioned mixed solvent, mixing them well, adding suitable oleic acid and oleylamine as surfactants into the mixed solution, adjusting growth process of crystal, and adding the mixed reaction materials into a hydrothermal reactor to perform hydrothermal reaction so as to obtain the urchin-like tin selenide. The preparation method is simple, low in cost and high in efficiency and is suitable for preparing IV-VI compounds; when used as an electrode material for supercapacitors, the urchin-like tin selenide shows excellent energy-storing performance.

Description

technical field [0001] The invention relates to the technical field of preparation of functional new materials, in particular to a preparation method of sea urchin-shaped tin selenide. Background technique [0002] Tin selenide is a lead-free semiconductor compound material, belonging to IV-VI group compounds, and is a typical p-type semiconductor material with a band gap between 0.9-1.3eV. As one of the four important layered semiconductor materials, the selenium atoms and tin atoms in tin selenide are tightly packed together along the c-axis direction, and there is a weak van der Waals force between layers. Based on the characteristics of its layered structure, it has excellent performance. [0003] At present, the research on tin selenide is mainly concentrated in the field of semiconductors. In addition, more and more research results have emerged in the fields of optoelectronic devices, thermoelectric materials, and light-emitting devices. For its controllable prepara...

Claims

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Application Information

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IPC IPC(8): C01B19/04H01G11/30H01G11/86
CPCY02E60/13C01B19/007C01P2002/72C01P2004/03C01P2004/30H01G11/30H01G11/86
Inventor 代超吕振瑞王子韩
Owner 王子韩
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