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Nanometer material with nickel cobaltate@nickel molybdate core shell structure as well as preparation method and application of nanometer material

A core-shell structure, nanomaterial technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as low energy density and power density, difficult application requirements, short cycle time, etc. , to achieve high energy density and power density, low production cost, good reproducibility

Inactive Publication Date: 2015-01-14
ANHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, it is found that these traditional electrode materials have more or less their own defects, such as: small active area, poor conductivity, low capacitance, short cycle time, low energy density and power density, due to The existence of these defects makes it difficult to meet the higher application requirements in reality

Method used

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  • Nanometer material with nickel cobaltate@nickel molybdate core shell structure as well as preparation method and application of nanometer material
  • Nanometer material with nickel cobaltate@nickel molybdate core shell structure as well as preparation method and application of nanometer material
  • Nanometer material with nickel cobaltate@nickel molybdate core shell structure as well as preparation method and application of nanometer material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of nickel cobaltate nickel molybdate core-shell structure nano material, comprising the following steps:

[0029] a. Put the nickel sheet with impurities on the surface into dilute hydrochloric acid, ethanol, and double distilled water in turn for ultrasonic cleaning for 20 minutes;

[0030] b. Mix 30mL double-distilled water, 1mmol nickel chloride hexahydrate, 2mmol cobalt chloride hexahydrate and 15mmol urea evenly and add them to a 60mL reaction kettle, immerse the treated foamed nickel in the mixed solution, and pour it into the reaction kettle. Tighten the lid of the kettle, react at 120°C for 6 hours, take out the reaction kettle and let it cool down to room temperature, rinse it with ethanol and double distilled water in turn, dry it at room temperature, and calcinate it at 400°C for 3 hours in an air atmosphere to obtain the nickel cobaltate nanowire material .

[0031] c. Dissolve 0.2379g of nickel chloride hexahydrate, 0.22g of tetrahydra...

Embodiment 2

[0037] A preparation method of nickel cobaltate nickel molybdate core-shell structure nano material, comprising the following steps:

[0038] a. Put the nickel sheet with impurities on the surface into dilute hydrochloric acid, ethanol, and twice distilled water in turn for ultrasonic cleaning for 20 minutes;

[0039] b. Mix 30mL double-distilled water, 1.2mmol nickel chloride hexahydrate, 2.2mmol cobalt chloride hexahydrate and 15.2mmol urea evenly, then add them into a 60mL reaction kettle, immerse the treated foamed nickel into the mixture, and pour it into the reaction In the kettle, tighten the lid of the kettle, react at 120°C for 6 hours, take out the reaction kettle and cool it to room temperature naturally, rinse it with ethanol and double distilled water in turn, dry it at room temperature, and calcinate it at 400°C for 3 hours in an air atmosphere to obtain nickel cobaltate nanowire material.

[0040]c. Dissolve 0.2382g of nickel chloride hexahydrate, 0.24g of ammo...

Embodiment 3

[0043] a. Put the nickel sheet with impurities on the surface into hydrochloric acid, ethanol, and double distilled water in turn for ultrasonic cleaning for 20 minutes;

[0044] b. Mix 30mL double-distilled water, 1.4mmol nickel chloride hexahydrate, 2.4mmol cobalt chloride hexahydrate and 15.6mmol urea evenly, then add them into a 60mL reaction kettle, immerse the treated foamed nickel into the mixture, and pour it into the reaction In the kettle, tighten the lid of the kettle, react at 120°C for 6 hours, take out the reaction kettle and cool it to room temperature naturally, rinse it with ethanol and double distilled water in turn, dry it at room temperature, and calcinate it at 400°C for 3 hours in an air atmosphere to obtain nickel cobaltate nanowire material.

[0045] c. Dissolve 0.2386g of nickel chloride hexahydrate, 0.26g of ammonium molybdate tetrahydrate and 0.29g of urea in 35mL of twice distilled water, and stir magnetically for 20min to form a uniform mixed solut...

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Abstract

The invention discloses a nanometer material with a nickel cobaltate@nickel molybdate core shell structure as well as a preparation method and application of the nanometer material. The nanometer material is prepared in a sealed high-temperature and high-pressure reaction kettle. Compared with the prior art, the preparation method has the advantages that the product has high purity, good dispersibility, and good and controllable crystalline form, production cost is low and reproducibility is good. The prepared nanometer material with the nickel cobaltate@nickel molybdate core shell structure grows on foamed nickel and can directly serve as an electrode material of a super capacitor, and thus the good circulation stability, large concrete capacitance, high energy density and high power density are realized and the potential application value in the aspect of energy storage is also realized.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and relates to a preparation method and an application of a nickel cobaltate nickel molybdate core-shell nanomaterial. Background technique [0002] With the rapid development of science and technology and the upgrading of electronic products, the research on supercapacitor electrode materials has aroused great interest of researchers. At present, the traditional supercapacitor electrode materials mainly include the following categories: carbon material electrode materials, conductive polymer electrode materials, and metal oxide electrode materials. However, in practical applications, it is found that these traditional electrode materials have more or less their own defects, such as: small active area, poor conductivity, low capacitance, short cycle time, low energy density and power density, due to The existence of these defects makes it difficult to meet the higher application requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/46H01G11/36H01G11/86B82Y30/00B82Y40/00
CPCY02E60/13H01G11/24H01G11/30H01G11/86
Inventor 张小俊顾正翔
Owner ANHUI NORMAL UNIV
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