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Method for preparing metal 1T phase rhenium sulfide hollow nanosphere supercapacitor electrode material

A technology for supercapacitors and electrode materials, applied in hybrid capacitor electrodes, nanotechnology, nanotechnology, etc., can solve problems such as poor electrical conductivity, and achieve the effects of low cost, good internal porous structure, and high specific capacitance

Inactive Publication Date: 2019-03-29
信阳学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to their poor electrical conductivity, the actual capacity and cycle performance of transition metal chalcogenides need to be further improved.

Method used

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  • Method for preparing metal 1T phase rhenium sulfide hollow nanosphere supercapacitor electrode material
  • Method for preparing metal 1T phase rhenium sulfide hollow nanosphere supercapacitor electrode material
  • Method for preparing metal 1T phase rhenium sulfide hollow nanosphere supercapacitor electrode material

Examples

Experimental program
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Effect test

Embodiment 1

[0028] (1) Mix 36 mL of absolute ethanol, 120 mL of water, and 1.5 mL of ammonia water (25%~28% in mass concentration) and stir for 45 minutes, then add 1.5 mL of ethyl orthosilicate, continue stirring for 15 minutes, and then add 0.6 g of dopamine hydrochloride, stirred for 32 hours, centrifugally dried, calcined at 800°C for 3 hours, dispersed the calcined solid in a hydrofluoric acid solution with a mass concentration of 10%, soaked in a water bath at 60°C for 24h, filtered, and deionized water Hollow carbon spheres are obtained after washing and drying;

[0029] (2) Disperse 50 mg of hollow carbon spheres in 50 mL of absolute ethanol, add 0.2 g of ammonium perrhenate, 0.2 g of L-cysteine, and 0.05 g of CTAB, conduct a hydrothermal reaction at 180 °C for 24 hours, and then dry by centrifugation. The metal 1T phase hollow rhenium sulfide nanospheres were obtained.

[0030] Performance tests were performed on the metal 1T phase rhenium sulfide hollow nanosphere supercapacito...

Embodiment 2

[0038](1) Mix 36 mL of absolute ethanol, 120 mL of water, and 1.5 mL of ammonia water (25%~28% in mass concentration) and stir for 45 minutes, then add 1.5 mL of ethyl orthosilicate, continue stirring for 15 minutes, and then add 0.6 g of dopamine hydrochloride, stirred for 32 hours, centrifugally dried, calcined at 800°C for 3 hours, dispersed the calcined solid in a hydrofluoric acid solution with a mass concentration of 10%, soaked in a water bath at 60°C for 24h, filtered, and deionized water Hollow carbon spheres are obtained after washing and drying;

[0039] (2) Disperse 30 mg of hollow carbon spheres in 50 mL of absolute ethanol, add 0.2 g of ammonium perrhenate, 0.2 g of L-cysteine, and 0.05 g of CTAB, conduct a hydrothermal reaction at 180 °C for 24 hours, and then centrifuge and dry. The metal 1T phase hollow rhenium sulfide nanospheres were obtained.

[0040] Performance tests were performed on the metal 1T phase rhenium sulfide hollow nanosphere supercapacitor el...

Embodiment 3

[0047] (1) Mix 36 mL of absolute ethanol, 120 mL of water, and 1.5 mL of ammonia water (25%~28% in mass concentration) and stir for 45 minutes, then add 1.5 mL of ethyl orthosilicate, continue stirring for 15 minutes, and then add 0.6 g of dopamine hydrochloride, stirred for 32 hours, centrifugally dried, calcined at 800°C for 3 hours, dispersed the calcined solid in a hydrofluoric acid solution with a mass concentration of 10%, soaked in a water bath at 60°C for 24h, filtered, and deionized water After washing and drying, hollow carbon spheres are obtained.

[0048] (2) Disperse 70 mg of hollow carbon spheres in 50 mL of absolute ethanol, add 0.2 g of ammonium perrhenate, 0.2 g of L-cysteine, and 0.05 g of CTAB, conduct a hydrothermal reaction at 180 °C for 24 hours, and then centrifuge and dry. The metal 1T phase hollow rhenium sulfide nanospheres were obtained.

[0049] Performance tests were performed on the metal 1T phase rhenium sulfide hollow nanosphere supercapacitor ...

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Abstract

The invention discloses a method for synthesizing a hollow metal 1T phase structure rhenium sulfide supercapacitor electrode material by a hydrothermal synthesis method, and belongs to the field of new energy technology. The supercapacitor electrode material of the invention has large specific capacitance, high electrochemical stability, a long cycle life and good electrochemical performance. Theworking electrode is easy to prepare, efficient in energy and friendly to environment, and has a broad industrial application prospect.

Description

technical field [0001] The invention belongs to the field of preparation of capacitor electrode materials, and in particular relates to a preparation method of metal 1T phase rhenium sulfide hollow nanosphere supercapacitor electrode materials. Background technique [0002] The rapid consumption of energy promotes the rapid development of the economy, but also brings more and more serious problems such as environmental pollution and global warming. Therefore, it is of great importance to explore new energy storage and conversion systems that are cheap, efficient and environmentally friendly. Supercapacitors, also known as electrochemical capacitors, are a new type of energy storage device that has developed rapidly in recent years between traditional capacitors and secondary batteries. It has the advantages of both—higher energy density than traditional capacitors. , At the same time higher power density than various secondary batteries. In addition, the typical advantages...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/30H01G11/42B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01G11/24H01G11/30H01G11/42Y02E60/13
Inventor 高永平袁英张秋平刘仁植袁业涛
Owner 信阳学院
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