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Hollow porous cube nanometer nickel sulfide and preparing method thereof

A cubic, nickel sulfide technology, applied in nickel sulfide and other directions, can solve problems such as difficulty in finding a template synthesis method, and achieve the effects of stable and reliable performance, short reaction period and uniform morphology

Active Publication Date: 2018-08-28
芜湖数字信息产业园有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, scientific researchers have successfully synthesized transition metals and transition metal oxides with hollow frameworks through many advanced methods. There are few reports on the synthesis of transition metal sulfides with nanoframes, mainly because it is difficult to find suitable templates. and efficient synthetic methods

Method used

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  • Hollow porous cube nanometer nickel sulfide and preparing method thereof
  • Hollow porous cube nanometer nickel sulfide and preparing method thereof
  • Hollow porous cube nanometer nickel sulfide and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of preparation step of hollow porous cube nickel sulfide is as follows:

[0028] (1) Preparation of Ni-Co PBA precursor, the preparation process is as follows:

[0029] Weigh 3mmol of nickel nitrate hexahydrate and 4.5mmol of sodium citrate dihydrate and dissolve them in 100ml of deionized water to form liquid A; weigh 2mmol of potassium cobaltcyanide and dissolve them in 100ml of deionized water to form liquid B; mix liquids A and B Stir on a magnetic stirrer respectively; when the two solutions are clear, mix them together and stir for 3 minutes; after stirring evenly, let stand at room temperature for 24 hours; then carry out centrifugation (12000r / min) and ultrasonic washing respectively, after 3 After washing with alcohol and water, the samples were vacuum dried overnight at room temperature. Obtain a Ni-Co PBA precursor with uniform size and a size of about 400nm, see figure 1 shown.

[0030] (2) Preparation of NiS nanomaterials, the preparation process ...

Embodiment 2

[0033] (1) The preparation of Ni-Co PBA precursor is as embodiment 1

[0034] (2) Preparation of NiS nanomaterials, the preparation process is as follows:

[0035] Weigh 40 mg of dried Ni-Co PBA precursor and dissolve it in 40 ml of absolute ethanol to form liquid A. At the same time, weigh 1 mmol of thioacetamide solid and 3 ml of aqueous sodium hydroxide solution (1M) in 17 ml of deionized Liquid B was formed in water, and after the two were ultrasonicated for 20 minutes, they were mixed and stirred on a magnetic stirrer for 5 minutes, then the mixed solution was transferred to a high-pressure reactor equipped with a polytetrafluoroethylene liner, and then placed in an oven at 100 °C, 120 °C, and 150 °C for 8 hours.

Embodiment 3

[0037] (1) The preparation of Ni-Co PBA precursor is as embodiment 1

[0038] (2) Preparation of NiS nanomaterials, the preparation process is as follows:

[0039] Weigh 40 mg of dried Ni-Co PBA precursor and dissolve it in absolute ethanol to form liquid A. At the same time, weigh 1 mmol of thioacetamide solid and 3 ml of aqueous sodium hydroxide solution (1M) and dissolve it in deionized water to form liquid B. Liquid, wherein the volume ratio of the alcohol solvent of liquid A and the water solvent of liquid B are V (alcohol): V (water) = 0:3, 1:2, 1:1, 2:1 respectively. After the two were sonicated for 20 minutes, they were mixed and stirred on a magnetic stirrer for 5 minutes, and then the mixture was transferred to a high-pressure reactor equipped with a polytetrafluoroethylene liner, and then placed in an oven at 100°C for 8 hours.

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Abstract

The invention discloses hollow porous cube nanometer nickel sulfide and a preparing method thereof. The material is of a hollow cube structure, has a coarse and porous surface and is formed by accumulating particles. In the method, with PBA as the precursor, the NiS of the hollow porous cube structure is prepared. The method is simple, easy to operate, short in reaction cycle and friendly to the environment. The synthesized nickel sulfide material is uniform in particle size, unified in morphology and stable and reliable in performance. Due to the hollow porous structure of the NiS, hydrogen peroxide is freely dispersed among the NiS nanoparticles; due to the huge specific surface area, hydrogen peroxide can be better adsorbed to the surface of the NiS for an electrocatalytic oxidation reaction.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a hollow porous cubic nano-nickel sulfide and a preparation method thereof. Background technique [0002] Hollow micro / nanostructured materials have attracted more and more attention due to their unique structures and properties, and are widely used in many fields such as energy storage and conversion, electrocatalysis, and chemical sensing. In recent years, scientific researchers have successfully synthesized transition metals and transition metal oxides with hollow frameworks through many advanced methods. There are few reports on the synthesis of transition metal sulfides with nanoframes, mainly because it is difficult to find suitable templates. and effective synthesis methods. Considering the unique physical and chemical properties and wide application fields of nanostructured transition metal dichalcogenides, it is necessary to develop a facile...

Claims

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Application Information

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IPC IPC(8): C01G53/11
CPCC01G53/11C01P2002/72C01P2002/85C01P2004/03C01P2004/38C01P2004/62
Inventor 刘红英徐含笑戴大响温佳俊裘宇斌
Owner 芜湖数字信息产业园有限公司
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