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Nickel aluminum composite oxide thin film material and preparation method and applications thereof

A composite oxide and thin film material technology, applied in the field of in-situ growth and preparation of nickel-aluminum composite oxide thin film materials, can solve problems such as limited application, and achieve the effects of not easy to fall off, high adhesion, and complete crystal form

Active Publication Date: 2012-11-14
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that its high resistance and mass transfer resistance limit its practical application

Method used

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  • Nickel aluminum composite oxide thin film material and preparation method and applications thereof
  • Nickel aluminum composite oxide thin film material and preparation method and applications thereof
  • Nickel aluminum composite oxide thin film material and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Use nickel foam sheets with a purity greater than 90% as raw materials, cut them into 20*30cm pieces, ultrasonically clean them with 10% hydrochloric acid for 5 minutes, then rinse them with deionized water, put them in an oven at 60°C and dry them for later use.

[0031] Add 64.76g of aluminum isopropoxide to 4L of dilute nitric acid solution with a concentration of 0.05mol / L, stir for 5min, put it into a water bath and heat it to 85°C for 3h under constant temperature reflux, and form a translucent sol after cooling. Centrifuge the sol to remove the precipitate to obtain the aluminum isopropoxide sol; adjust the pH value to about 7.5 with 1% ammonia water.

[0032] Pour the above-mentioned aluminum sol of isopropoxide into a polytetrafluoroethylene reactor, put the treated foamed nickel sheet into an oven at 60°C for 8 hours, take out the reactor, cool it down, take out the nickel sheet, and use it Rinse with ion water, dry, and then bake at 430°C for 3 hours to obtai...

Embodiment 2

[0034] Use nickel foam sheets with a purity greater than 90% as raw materials, cut them into 20*30cm pieces, ultrasonically clean them with 10% hydrochloric acid for 5 minutes, then rinse them with deionized water, put them in an oven at 60°C and dry them for later use.

[0035] Add 50g of aluminum isopropoxide to 4L of dilute nitric acid solution with a concentration of 0.05mol / L, stir for 8 minutes, put it into a water bath and heat it to 90°C for 8 hours, and then form a translucent sol after cooling. The sol was centrifuged to remove the precipitate to obtain the aluminum isopropoxide sol; the pH value was adjusted to 8.0 with 1% ammonia water.

[0036] Pour the above-mentioned aluminum sol of isopropoxide into a polytetrafluoroethylene reactor, put the treated foamed nickel sheet into an oven at 140°C for 36 hours, take out the reactor, cool down, take out the nickel sheet, and use Rinse with ion water, dry, and then bake at 480°C for 4 hours to obtain a nickel-aluminum c...

Embodiment 3

[0038] Use nickel foam sheets with a purity greater than 90% as raw materials, cut them into 20*30cm pieces, ultrasonically clean them with 10% hydrochloric acid for 5 minutes, then rinse them with deionized water, put them in an oven at 60°C and dry them for later use.

[0039] Add 40g of aluminum isopropoxide to 4L of dilute nitric acid solution with a concentration of 0.05mol / L, stir for 10min, put it into a water bath and heat it to 98°C for 12h under constant temperature reflux, and form a translucent sol after cooling. The sol was centrifuged to remove the precipitate to obtain the aluminum isopropoxide sol; the pH value was adjusted to 7.0 with 1% ammonia water.

[0040] Pour the above-mentioned aluminum sol of isopropoxide into a polytetrafluoroethylene reactor, put the treated foamed nickel sheet into an oven at 120°C for 48 hours, take out the reactor, cool down, take out the nickel sheet, and use Rinse with ion water, dry, and then bake at 400°C for 3 hours to obtai...

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Abstract

The invention relates to a nickel aluminum composite oxide thin film material and a preparation method thereof. The material is used as an electrode material and an electro-adsorption material of a supercapacitor. Foam nickel is used as a matrix, the nickel aluminum composite oxide thin film material is synthesized on the surface of the matrix by an in-situ growth method, and the nickel aluminum composite oxide thin film material with a thickness of 15nm to 25nm is complete in crystal form and uniform in particle size distribution. Through an electrochemical capacitance test which is performed on the material, a result that the nickel-based nickel aluminum composite oxide thin film has a high specific capacitance and charge-discharge capacity is found out, so that the nickel-based nickel aluminum composite oxide thin film can be used as the electrode material of the supercapacitor. Simultaneously, a result that the nickel-based nickel aluminum composite oxide thin film has good electro-adsorption and desorption performances is found out, so that the nickel-based nickel aluminum composite oxide thin film can be used as an electro-adsorption agent.

Description

technical field [0001] The invention relates to a nickel-aluminum composite oxide film material and a preparation method thereof. In particular, it relates to an in-situ growth preparation method of a nickel-aluminum composite oxide thin film material grown on the surface of a foamed nickel substrate. At the same time, it involves using the nickel-aluminum composite oxide thin film as an electrode material of a supercapacitor and as an electric adsorption material. Background technique [0002] With the miniaturization of electrical equipment and the development of the electric vehicle industry, supercapacitors have attracted widespread attention as a backup power supply and memory backup device. Because of its large storage energy, light weight, and multiple charge and discharge, it is used as a backup power source for computer systems. Supercapacitors have the characteristics of high energy density, high power density, long cycle life and the ability to operate at low vo...

Claims

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Application Information

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IPC IPC(8): H01G9/042C01F7/02C01G53/04C02F1/469
CPCY02E60/13
Inventor 雷晓东叶正平孙晓明常铮徐梦莹
Owner BEIJING UNIV OF CHEM TECH
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