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Preparation method of cuco2s4 nanoparticles

A technology of nanoparticles and copper salts, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of high heat treatment temperature, increased synthesis steps, etc., and achieve good supercapacitive performance, low cost, and cheap raw materials. Effect

Inactive Publication Date: 2018-08-07
ANYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, high heat treatment temperature and cumbersome synthesis steps increase the difficulty of experiment and production cost

Method used

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  • Preparation method of cuco2s4 nanoparticles
  • Preparation method of cuco2s4 nanoparticles
  • Preparation method of cuco2s4 nanoparticles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] ①In a 100mL flask, add 0.2 mmol of copper acetate, 0.4 mmol of cobalt acetate, and 9.6 mmol of oleylamine into 20 mL of anisole, stir and heat to 60°C for 30 minutes until completely dissolved.

[0019] ②Put the reaction solution prepared in step ① into a 30mL polytetrafluoroethylene liner autoclave containing 0.8 mmol thioacetamide. After solvothermal heating at 180°C for 24 hours, the reaction kettle is naturally cooled to 60°C. After centrifugation, Wash several times with methanol and absolute ethanol, and dry the sample in vacuum to obtain CuCo 2 S 4 Nanoparticles.

[0020] The resulting CuCo 2 S 4 The X-ray diffraction pattern of nanoparticles is attached figure 1 shown. Depend on figure 1 It can be seen that all the diffraction peaks are completely consistent with the standard cubic CuCo 2 S 4 Structure (JPCDS NO. 42-1450), genus Fd-3m space group, whose unit cell parameters are a = 0.9474 nm, no other impurities such as CoCu were detected 2 S 4 , C...

Embodiment 2

[0022] ①In a 100mL flask, add 0.4 mmol of copper acetate, 0.8 mmol of cobalt acetate, and 16 mmol of octadecylamine into 20 mL of anisole, stir and heat to 60°C, keep for 30 minutes until completely dissolved .

[0023] ②Transfer the reaction solution prepared in step ① into a 30mL polytetrafluoroethylene liner high-pressure reactor containing 1.6 mmol thioacetamide. , washed several times with absolute ethanol, and vacuum-dried the sample to obtain the same spherical CuCo 2 S 4 Nanoparticles, with an average size of 20-60 nanometers.

[0024] The obtained CuCo 2 S 4 Nanoparticles were made into supercapacitor working electrodes and their electrochemical properties were tested. Figure 3a is based on CuCo 2 S 4 Cyclic voltammograms of nanoparticle supercapacitor electrodes at different scan rates. It can be seen from the figure that the electrode exhibits a pair of obvious redox peaks, which indicates that CuCo 2 S 4 Nanoparticles are a typical pseudocapacitive materia...

Embodiment 3

[0026] ①In a 100mL flask, add 0.3 mmol of copper acetate, 0.6 mmol of cobalt acetate, and 13 mmol of oleylamine into 20 mL of anisole, stir and heat to 60°C, and keep for 30 minutes until completely dissolved.

[0027] ②Put the reaction solution prepared in step ① into a 30mL polytetrafluoroethylene liner autoclave containing 1.2 mmol thioacetamide. After 200°C solvent heating for 20 hours, the reaction kettle is naturally cooled to 60°C. After centrifugation, , washed several times with absolute ethanol, and vacuum-dried to obtain the same spherical CuCo as in Example 1. 2 S 4 Nanoparticles, with an average size of 20-60 nanometers.

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Abstract

The invention discloses a preparation method of electrode material CuCo2S4 nanoparticles, is suitable for a super capacitor and belongs to the technical field of preparation of functional nanomaterials. The method comprises the steps of adopting long-chain alkylamine or unsaturated amine as a surfactant, thioacetamide as a sulfur source and anisole as a reaction solvent, preparing the CuCo2S4 nanoparticles with good electrochemical properties by adopting a solvothermal method. The method is simple, high in efficiency and low in cost; and the prepared spheroid CuCo2S4 nanoparticles are about 20-60nm in diameter.

Description

technical field [0001] The present invention relates to a kind of CuCo suitable for supercapacitor electrode material 2 S 4 The invention relates to a method for preparing nanoparticles, which belongs to the technical field of preparing functional nanometer materials. Background technique [0002] With the increasing energy crisis and environmental pollution, human beings pay more and more attention to a new type of electric energy storage device—electrochemical supercapacitor (referred to as supercapacitor). The research shows that the main factor affecting the performance of supercapacitors is the electrode material. Therefore, seeking ideal electrode materials has been a research hotspot in the past ten years. So far, three electrode materials have been selected as supercapacitor electrode materials, including: carbon materials and their derivatives (such as: carbon particles, graphene, carbon nanotubes (CNT), etc.), transition metal compounds and their derivatives Ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86H01G11/30C01G51/00B82Y30/00
CPCY02E60/13
Inventor 杜卫民徐亚利赵俊红张有娟程承
Owner ANYANG NORMAL UNIV
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