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Conductive substrate loaded tin disulfide-nickel sulfide core-shell heterogeneous porous nano wall array structure and preparation method thereof

A tin disulfide, array structure technology, used in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., to achieve the effects of improving cycle stability, high product yield, and simple and easy-to-obtain raw materials

Pending Publication Date: 2020-02-14
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the construction of uniform core-shell heterostructures, especially two-dimensional core-shell heterostructures, is still a difficult problem.

Method used

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  • Conductive substrate loaded tin disulfide-nickel sulfide core-shell heterogeneous porous nano wall array structure and preparation method thereof
  • Conductive substrate loaded tin disulfide-nickel sulfide core-shell heterogeneous porous nano wall array structure and preparation method thereof
  • Conductive substrate loaded tin disulfide-nickel sulfide core-shell heterogeneous porous nano wall array structure and preparation method thereof

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preparation example Construction

[0032] The preparation method of the tin disulfide-nickel sulfide core-shell heterogeneous porous nano-wall array structure supported by the conductive substrate of the present invention comprises the following steps and contents:

[0033] (1) First, dissolve tin tetrachloride and thioacetamide in absolute ethanol in a beaker; then, transfer to an autoclave, and place a piece of clean conductive substrate vertically. Seal the reaction kettle and put it into an electric furnace, then heat it from room temperature to 140-180°C at a rate of 5-25°C / min, and keep it warm for 4-12 hours. After naturally cooling to room temperature, open the reaction kettle, take out the substrate, alternately rinse with deionized water and alcohol for 3-5 times, and dry at 50-80°C for 8-12 hours to obtain the conductive substrate-supported tin disulfide nanoparticles. slice samples.

[0034] (2) In a beaker, nickel chloride is dissolved in absolute ethanol to obtain a uniform solution; after being ...

Embodiment 1

[0041] Example 1: First, in a 100 mL beaker, 0.631 g of tin tetrachloride pentahydrate and 0.270 g of thioacetamide were dissolved in 60 mL of absolute ethanol. Then, it was transferred into a 100mL autoclave, and a piece of pre-cleaned carbon cloth (3.7×5cm 2 ). The reaction kettle was sealed and placed in an electric furnace, then heated from room temperature to 160°C at a rate of 15°C / min, and kept for 6 hours. After naturally cooling to room temperature, the reactor was opened, the carbon cloth was taken out, rinsed four times with deionized water and alcohol alternately, and dried at 60°C for 12 hours to obtain the carbon cloth-supported tin disulfide nanosheet sample.

[0042] In another 50mL beaker, dissolve 0.143g of nickel chloride tetrahydrate in 30mL of absolute ethanol to obtain a uniform solution; after transferring to a 50mL autoclave, put a piece of carbon cloth obtained in the above steps vertically The tin disulfide nanosheet sample (2.5×3.7cm 2 ). The rea...

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Abstract

The invention relates to a conductive substrate loaded tin disulfide-nickel sulfide core-shell heterogeneous porous nano wall array structure and a preparation method thereof and belongs to the technical field of new energy material preparation. The method is characterized in that tin disulfide is arranged in a nanosheet forming a nanowall, a shell layer is uniformly coated porous nickel sulfide,and the nanowall is perpendicular to a conductive substrate to form a uniform array structure. The synthesis method of a product comprises steps of firstly, preparing a conductive substrate loaded tindisulfide nanosheet array structure by a solvothermal method; uniformly growing a porous nickel sulfide thin layer on the surface of tin disulfide in the secondary solvothermal process by taking thetin disulfide as a template and nickel chloride as a nickel source; and lastly, obtaining the said product. The method has advantages of simple and easily available raw materials, simple equipment andpreparation process, strong process parameter controllability, high product yield, clean and environment-friendly production process, and easy realization of large-scale production, and the nanostructure is high in density, high in yield, high in purity, controllable in morphology and excellent in electrochemical energy storage performance.

Description

technical field [0001] The invention relates to a tin disulfide-nickel sulfide core-shell heterogeneous porous nano-wall array structure supported by a conductive substrate and a preparation method thereof, belonging to the technical field of new energy material preparation. Background technique [0002] Research on rechargeable devices has attracted attention since the first commercial lithium-ion batteries were produced in the early 1990s. After nearly 30 years of research and development, the performance of lithium-ion batteries has been greatly improved in all aspects, and some of these products have been applied to high-power equipment such as automobiles and airplanes. On the basis of the research on lithium-ion batteries, researchers have also developed many new energy storage systems that are safer and low-cost, such as cheap metal-ion batteries such as sodium, potassium, magnesium, and zinc, metal-air batteries, and supercapacitors. Among them, supercapacitors are ...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/30H01G11/86
CPCH01G11/24H01G11/30H01G11/86Y02E60/13
Inventor 符秀丽官顺东彭志坚
Owner BEIJING UNIV OF POSTS & TELECOMM
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