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A method for preparing nickel hydroxide-nickel oxide thin film electrodes based on in-situ growth

A technology of nickel hydroxide and thin film electrodes, which is applied in the manufacture of circuits, electrical components, cables/conductors, etc., can solve the problems of complicated electrode preparation process, and achieve the effects of low production cost, overcoming complex processes and cheap raw materials

Inactive Publication Date: 2017-08-04
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the commonly reported nickel hydroxide and nickel oxide powder materials, when they are applied in the electrochemical field, it is often necessary to introduce conductive agents (graphite, acetylene black, etc.) and binders (polytetrafluoroethylene, etc.) to exert their activity. This complicates the electrode preparation process

Method used

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  • A method for preparing nickel hydroxide-nickel oxide thin film electrodes based on in-situ growth
  • A method for preparing nickel hydroxide-nickel oxide thin film electrodes based on in-situ growth
  • A method for preparing nickel hydroxide-nickel oxide thin film electrodes based on in-situ growth

Examples

Experimental program
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Effect test

Embodiment 1

[0019] First, clean the industrial foam nickel substrate to remove dust, rust, and oil to obtain a clean nickel surface; then, configure a KOH solution with a concentration of 50g / L, and add hydrogen peroxide to it so that the concentration of hydrogen peroxide is 1g / L L; secondly, put the electrolyte solution into the reaction kettle, and at the same time immerse the clean nickel substrate in the electrolyte solution; after that, put the reaction kettle in a muffle furnace for hydrothermal reaction at 180°C for 24 hours, so that the surface of the metal nickel An oxidation reaction occurs; finally, the metallic nickel after hydroheating is taken out, cleaned and dried to obtain a nickel hydroxide-nickel oxide thin film electrode based on in-situ growth. Such as figure 1 As shown, through the method for preparing nickel hydroxide-nickel oxide thin film electrode based on in-situ growth of the present invention, a uniform product film can be obtained in situ on the substrate (s...

Embodiment 2

[0021] First, the flat nickel substrate is cleaned to remove dust, rust, and oil to obtain a clean nickel surface; then, a NaOH solution with a concentration of 300g / L is configured, and ammonia water is added to it so that the concentration of ammonia water is 5g / L; secondly, the The electrolyte solution is put into the reaction kettle, and the clean nickel substrate is immersed in the electrolyte solution at the same time; after that, the reaction kettle is placed in a muffle furnace for a hydrothermal reaction at 250°C for 1 hour, so that the surface of the metal nickel undergoes an oxidation reaction; finally , take out the electrode after hydroheating, clean it and dry it, then the nickel hydroxide-nickel oxide thin film electrode based on in-situ growth can be obtained.

Embodiment 3

[0023] First, the stainless steel nickel-plated substrate is cleaned to remove dust, rust, and oil to obtain a clean nickel surface; then, configure a KOH solution with a concentration of 100g / L, and add sodium carbonate to it so that the concentration of sodium carbonate is 10g / L; Secondly, put the electrolyte solution into the reaction kettle, and at the same time immerse the clean nickel substrate in the electrolyte solution; after that, put the reaction kettle in a muffle furnace for 96 hours of hydrothermal reaction at 120°C, so that the metal nickel surface Oxidation reaction; finally, the hydrothermal electrode is taken out, cleaned and dried to obtain a nickel hydroxide-nickel oxide thin film electrode based on in-situ growth.

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Abstract

The invention relates to an in-situ-growth-based method for preparing nickel hydroxide-nickel oxide film electrode. The method comprises: cleaning, dedusting, rust removing, and oil removing are carried out on a metallic nickel substrate to obtain a clean nickel surface; preparation of an alkaline electrolyte is carried out, wherein the main raw material is KOH or NaOH alkali metal and the concentration is 5-300g / L and the auxiliary raw material is one of hydrogen peroxide, ammoniacal liquor, sodium carbonate, sodium oxalate, urea, and glycol and the concentration is 1-20g / L; the electrolyte is placed in an reaction still and the clean nickel substrate is immersed into the electrolyte; the reaction still is placed in a muffle furnace to carry out hydrothermal reaction for 1 to 96 houses at the temperature of 120 to 250 DEG C, so that oxidation reaction is carried out on the metallic nickel surface; and then the metallic nickel is taken out after water heating and is cleaned and dried, thereby obtaining the nickel hydroxide-nickel oxide film electrode prepared based on in-situ growth. The preparation method has advantages of simple process, low price of raw materials, easy operation, and low production price; the thickness of the prepared film material can be controlled; and the activity is high. The method is suitable for industrial large-scale production.

Description

technical field [0001] The invention relates to a preparation method of an electrode material. Background technique [0002] As functional materials with high electrochemical activity, nickel hydroxide and nickel oxide nanomaterials have great potential in electrochemical energy storage (such as lithium-ion batteries, supercapacitors), electrochemical catalysis (such as electrochemical oxygen evolution), and electrochemical sensors. important application value. In recent years, the development and performance research of nickel hydroxide and nickel oxide materials have attracted the attention of scientists at home and abroad, and the development of low-cost, easy-to-operate, high product activity, and industrializable material preparation methods has become a key issue and is of great significance . [0003] In the field of electrochemical applications, in order to better exert the activity of the product, the prepared nickel hydroxide and nickel oxide need to maintain goo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00
CPCH01B13/00
Inventor 樊玉欠侯爵梁丹阳王慧娟余文婷郭壮闫帅李甄马志鹏刘宇邵光杰
Owner YANSHAN UNIV
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