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Preparation method of bullet-shaped cobaltous phosphate ammonium nitrate particles with multilayer scales and application thereof

A cobalt nickel ammonium phosphate and bullet head technology, applied in the field of materials and chemical synthesis, can solve the problems of particle size, poor control of phase, affecting electrochemical energy storage performance, harsh synthesis conditions of composite metal phosphate materials, etc. Easy operation, uniform size, good distribution effect

Active Publication Date: 2017-06-27
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the synthesis conditions of composite metal phosphate materials are harsh, and some require high temperature and inert gas protection
In addition, the size and phase of the particles synthesized under high temperature conditions are not easy to control, which seriously affects its electrochemical energy storage performance.

Method used

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  • Preparation method of bullet-shaped cobaltous phosphate ammonium nitrate particles with multilayer scales and application thereof
  • Preparation method of bullet-shaped cobaltous phosphate ammonium nitrate particles with multilayer scales and application thereof
  • Preparation method of bullet-shaped cobaltous phosphate ammonium nitrate particles with multilayer scales and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Weigh 0.3 g of ammonium phosphate, 0.24 g of nickel nitrate hexahydrate and 0.06 g of cobalt nitrate hexahydrate, and pour them all into 10 mL of deionized water and 10 mL of ethylene glycol, and stir the mixture evenly at room temperature to make Mix well and fully react.

[0033] The mixing molar ratio of nickel nitrate and cobalt nitrate in the above materials is 4:1.

[0034] (2) Put the mixed system after the reaction in the previous step into an ultrasonic machine for ultrasonication, so that the components are evenly dispersed.

[0035] (3) Then place the uniformly dispersed system at 200° C. for hydrothermal reaction for 45 hours.

[0036] (4) After the hydrothermal reaction is completed, the reaction solution is naturally cooled to room temperature, the reactant is taken out, and the precipitate is obtained after standing for stratification, washed with water and ethanol, and then dried to obtain blue-gray cobalt nickel ammonium phosphate powder.

Embodiment 2

[0038] (1) Weigh 0.3 g of ammonium phosphate, 0.24 g of nickel nitrate hexahydrate and 0.06 g of cobalt nitrate hexahydrate, and pour them all into 10 mL of deionized water and 10 mL of ethylene glycol, and stir the mixture evenly at room temperature to make Mix well and fully react.

[0039] (2) Put the mixed system after the reaction in the previous step into an ultrasonic machine for ultrasonication, so that the components are evenly dispersed.

[0040] (3) Then place the uniformly dispersed system at 200° C. for hydrothermal reaction for 20 hours.

[0041] (4) After the hydrothermal reaction is completed, the reaction solution is naturally cooled to room temperature, the reactant is taken out, and the precipitate is obtained after standing for stratification, washed with water and ethanol, and then dried to obtain blue-gray cobalt nickel ammonium phosphate powder.

Embodiment 3

[0043] (1) Weigh 0.3 g of ammonium phosphate, 0.3 g of nickel nitrate hexahydrate and 0.04 g of cobalt nitrate hexahydrate, and pour them all into 10 mL of deionized water and 10 mL of ethylene glycol, and stir the mixture evenly at room temperature. Let it mix well and fully react.

[0044] The mixing molar ratio of nickel nitrate and cobalt nitrate in the above materials is 7.5:1.

[0045] (2) Put the mixed system after the reaction in the previous step into an ultrasonic machine for ultrasonication, so that the components are evenly dispersed.

[0046] (3) Subsequently, the uniformly dispersed system was placed at 200° C. for hydrothermal reaction for 10 hours.

[0047] (4) After the hydrothermal reaction is completed, the reaction solution is naturally cooled to room temperature, the reactant is taken out, and the precipitate is obtained after standing for stratification, washed with water and ethanol, and then dried to obtain blue-gray cobalt nickel ammonium phosphate po...

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Abstract

The preparation method of bullet-shaped cobaltous phosphate ammonium nitrate particles with multilayer scales and the application thereof belong to the material and chemical synthesis technology field. Ammonium phosphate, Nickel nitrate hexahydrate, cobalt- nitrate hexahydrate, deionized water and ethylene glycol are mixed to obtain reaction mixed solution, the reaction mixed solution is subjected to ultrasonic dispersion to be disposed in a reaction still for a hydrothermal reaction; and a system after the hydrothermal reaction is cooled to a room temperature, sediment is taken out to performing washing by using water and ethyl alcohol and drying to obtain bullet-shaped cobaltous phosphate ammonium nitrate particles with multilayer scales. The preparation method of the bullet-shaped cobaltous phosphate ammonium nitrate particles with multilayer scales and the application thereof are simple to operate and environmentally friendly, the size of product particle is uniform, the specific surface area is large, distribution is good, the materials can be used in the fields of the supercapacitor, the battery and the electrocatalysis, etc.

Description

technical field [0001] The invention belongs to the technical field of materials and chemical synthesis, and in particular relates to an alcohol-assisted hydrothermal synthesis method of cobalt nickel ammonium phosphate material and its application. Background technique [0002] At present, iron-based phosphate micro-nanomaterials are widely used in various fields such as electrochemical energy storage, adsorbents, catalysts, and carriers due to their wide variety, stable structure, and rich electrochemical behavior. Especially composite metal phosphate materials, due to their stable structure and rich electrochemical behavior, they are often used as electrochemical energy storage materials and have attracted the attention of many scientists. [0003] However, the synthesis conditions of composite metal phosphate materials are harsh, and some require high temperature and inert gas protection. In addition, the size and phase of the particles synthesized under high temperatur...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/30H01G11/86
CPCY02E60/13H01G11/24H01G11/30H01G11/86
Inventor 庞欢张光勋李冰路遥邱嘉晴赵明明
Owner YANGZHOU UNIV
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