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A kind of preparation method of nickel foam/nickel molybdate/zinc cobaltate composite film

A composite film and nickel foam technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, structural parts, etc., can solve the problems of poor stability, complex binary transition metal oxide composite process, etc., and achieve good stability. , The shape and size are controllable, and the preparation has no environmental pollution effect.

Active Publication Date: 2020-07-24
HARBIN UNIV OF COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a foamed nickel / nickel molybdate / zinc cobaltate composite film in order to solve the problems of complex and poor stability in the composite process of existing binary transition metal oxides and other materials

Method used

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  • A kind of preparation method of nickel foam/nickel molybdate/zinc cobaltate composite film
  • A kind of preparation method of nickel foam/nickel molybdate/zinc cobaltate composite film
  • A kind of preparation method of nickel foam/nickel molybdate/zinc cobaltate composite film

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specific Embodiment approach 1

[0022] Specific embodiment one: the preparation method of nickel foam / nickel molybdate / zinc cobaltate composite film of this embodiment is realized according to the following steps:

[0023] 1. The molar ratio is 0.01~0.3: 0.02~0.1: 0.02~0.3: 0.5~3: 0.01~0.1: 0.01~0.2 Sodium molybdate solid powder, nickel nitrate solid powder, cobalt nitrate solid powder, zinc nitrate solid powder 1. Ammonium fluoride solid powder and urea solid powder are added to the reaction vessel, after adding distilled water, ultrasonically disperse evenly to obtain a mixed solution;

[0024] 2. Place the foamed nickel substrate in nitric acid for ultrasonic cleaning, then repeatedly rinse with absolute ethanol and water, and dry to obtain a cleaned foamed nickel substrate;

[0025] 3. Put the cleaned foamed nickel substrate into the mixed solution in step 1 for magnetic stirring, then transfer it to a constant temperature water bath to control the reaction temperature at 30-180°C for heating and stirrin...

specific Embodiment approach 2

[0028] Specific embodiment two: the difference between this embodiment and specific embodiment one is that in step one, 0.01~0.03mol sodium molybdate solid powder, 0.03~0.1mol nickel nitrate solid powder, 0.1~0.2mol cobalt nitrate solid powder, 1~2mol Zinc nitrate solid powder, 0.013-0.05mol ammonium fluoride solid powder and 0.03-0.1mol urea solid powder are added into the reaction vessel, 70mL-120mL of distilled water is added, and the mixture is ultrasonically dispersed.

specific Embodiment approach 3

[0029] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the time for ultrasonic dispersion in step 1 is 1-2 hours.

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Abstract

The invention relates to a simple and environmentally friendly method for preparing a foamed nickel / nickel molybdate / zinc cobalt oxide composite film, which aims at solving the problems of complex composite process and poor stability of the existing binary transition metal oxide and other materials. The invention relates to a method for preparing the foamed nickel / nickel molybdate / zinc cobalt oxide composite film. 11) ultrasonically disper sodium molybdate powder, nickel nitrate pow, cobalt nitrate powder, zinc nitrate powder, ammonium fluoride powder and urea pow in distilled water to obtaina mixed solution; 2, clean that foamed nickel substrate; 3, place that foamed nickel substrate into the mix solution for magnetic stirring, carrying out heating reaction at 30-180 DEG C, and obtain the foamed nickel / nickel molybdate / zinc cobalt oxide composite film after heat treatment. The preparation method of the invention is simple and no environmental pollution, the thin film is not easy to fall off after ultrasonic treatment, the nano array is uniformly distributed on the surface of the thin film, the stability is excellent, and the composite thin film has excellent performance as an electrode material.

Description

technical field [0001] The invention relates to a simple and non-environmental pollution-free method for preparing foamed nickel / nickel molybdate / zinc cobaltate composite films. Background technique [0002] Material selection and structural design have a significant impact on performance. Functional nanomaterials with specific composition and structure have a wide range of applications in biology, energy, electronics and other fields. Selecting ideal materials, controlling their composition and structure, and studying their formation mechanism have always been important research directions in the field of materials and chemistry. Due to their high theoretical capacity and good electrochemical activity, transition metal oxides have been widely used as electrode materials in the energy field. Among them, MnO 2 , NiO, Co 3 o 4 And RuO etc. are typical representatives. The low electrical conductivity of transition metal oxides leads to low actual specific capacity; repeate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/30H01G11/46H01G11/86H01M4/36H01M4/38H01M4/48
CPCH01G11/30H01G11/46H01G11/86H01M4/364H01M4/38H01M4/48Y02E60/10
Inventor 王晶刘旭松智慧
Owner HARBIN UNIV OF COMMERCE