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Preparation method of nanometer nickel sulfide

A nickel sulfide, nanotechnology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of high cost, safety hazards, etc., to reduce the preparation cost, good thermal stability, The effect of high conductivity

Inactive Publication Date: 2016-03-30
BEIJING ALUMINUM ENERGY S&T +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of lithium resources, the high cost and great safety hazards limit the further development of lithium-ion batteries. It is almost impossible to apply lithium-ion batteries to large-scale energy conversion and storage of green energy such as wind energy, solar energy, and tidal energy. Mission impossible

Method used

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  • Preparation method of nanometer nickel sulfide

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Experimental program
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Effect test

Embodiment 1

[0019] Add 4mmol of nickel acetate and 3mmol of sodium thiosulfate into 30mL of deionized water, stir magnetically for 5min, transfer to a 50mL autoclave, seal and heat at 230°C for 40h. After cooling to room temperature, open the autoclave, collect the prepared solid product by centrifugation, wash with distilled water or absolute ethanol, add distilled water, centrifuge speed 4000r / min, centrifugation time 10min, centrifugation times 3-5 times, at 60°C Vacuum-dried to obtain nanoribbon-shaped NiS with a particle size of about 20 nm.

Embodiment 2

[0021] Add 2 mmol of nickel acetate and 1 mmol of sodium thiosulfate into 30 mL of deionized water, stir magnetically for 5 min, transfer to a 50 mL autoclave, seal and heat at 170°C for 15 h. After cooling to room temperature, the autoclave was opened, and the prepared solid product was collected by centrifugation, washed with distilled water or absolute ethanol, and vacuum-dried at 60°C to obtain nanoribbon-shaped NiS with a particle size of about 200nm.

Embodiment 3

[0023] Add 2mmol of nickel acetate and 1mmol of sodium thiosulfate into 30mL of deionized water, stir magnetically for 5min, transfer to a 50mL autoclave, seal and heat at 150°C for 20h. After cooling to room temperature, the autoclave was opened, and the prepared solid product was collected by centrifugation, washed with distilled water or absolute ethanol, and vacuum-dried at 60°C to obtain nanoribbon-shaped NiS with a particle size of about 300nm.

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Abstract

The invention relates to a preparation method of nanometer nickel sulfide. The method comprises steps as follows: evenly mixing nickel acetate and sodium thiosulfate according to certain proportion, dissolving in deionized water, obtaining mixed solution; adding the mixed solution in an autoclave, reacting for certain period of time at certain temperature; cooling, carrying out centrifugal washing, drying, obtaining black solid matter, namely nanometer banding NiS with hexagonal phase, wherein the particle diameter is 10-500 nanometers. The invention has advantages that the preparation material is low in cost and price and is green and environment protective, the preparation method is simple and easy in operation, the prepared product is nanometer material, is even in appearance and particle and has good electrochemical activity, when being taken as the cathode material of the aluminium ion battery, the battery specific capacity of the product reaches 100 mAh / g, and the product can circulate stably.

Description

technical field [0001] The invention relates to a preparation method of nano nickel sulfide. Background technique [0002] There are many forms of nickel sulfide, such as NiS, Ni 3+x S 2 、Ni 3 S 2 、Ni 7 S 6 、Ni 9 S 8 、Ni 3 S 4 and NiS 2 . Among them, NiS has a hexagonal structure and an orthorhombic structure, and both have good chemical activity, and can be used in infrared detection, lithium-ion battery cathode materials, and catalysis. Many researchers have synthesized orthorhombic NiS in different forms, such as tubular, layered, hedgehog, and flower. Hexagonal NiS exhibits metal-semiconductor properties and paramagnetic transition properties. In 2001, Qian Yitai's team prepared irregular nano-hexagonal NiS particles. In 2004, Liu Xiaohe proposed to synthesize hexagonal NiS of hedgehog type in hydrazine hydrate. [0003] Since Japan's SONY company successfully launched lithium-ion batteries, lithium-ion batteries have been widely used in electronic product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/1397H01M4/58H01M10/054B82Y30/00
CPCB82Y30/00H01M4/1397H01M4/5815H01M10/054Y02E60/10
Inventor 焦树强余智静涂继国王俊香李海滨
Owner BEIJING ALUMINUM ENERGY S&T
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