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
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[0031] Example 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 respectively, 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 The mixture is uniform and fully reacted.
[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 previous reaction into an ultrasonic machine and sonicate to make the components uniformly dispersed.
[0035] (3) The uniformly dispersed system is then placed at 200°C for a hydrothermal reaction for 45 hours.
[0036] (4) After the hydrothermal reaction is completed, the reaction solution is naturally cooled to room temperature, and the reactants are taken out, separated by standing to obtain a precipitate, washed with water and ethanol, and dried to obtain a blue-gray cobalt nickel ammonium phosphate powder.
Example Embodiment
[0037] Example 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 respectively, 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 The mixture is uniform and fully reacted.
[0039] (2) Put the mixed system after the previous reaction into an ultrasonic machine and sonicate to make the components uniformly dispersed.
[0040] (3) The uniformly dispersed system is then placed at 200°C for a hydrothermal reaction for 20 hours.
[0041] (4) After the hydrothermal reaction is completed, the reaction solution is naturally cooled to room temperature, and the reactants are taken out, separated by standing to obtain a precipitate, washed with water and ethanol, and dried to obtain a blue-gray cobalt nickel ammonium phosphate powder.
Example Embodiment
[0042] Example 3:
[0043] (1) Weigh 0.3 g ammonium phosphate, 0.3 g nickel nitrate hexahydrate and 0.04 g cobalt nitrate hexahydrate, and pour them into 10 mL deionized water and 10 mL ethylene glycol. Stir the mixture evenly at room temperature. Make it mix homogeneously 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 previous reaction into an ultrasonic machine and sonicate to make the components uniformly dispersed.
[0046] (3) The uniformly dispersed system is then 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, and the reactants are taken out, separated by standing to obtain a precipitate, washed with water and ethanol, and dried to obtain a blue-gray cobalt nickel ammonium phosphate powder.
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