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A preparation method of nickel hydroxide nanosheet array material grown on the surface of nickel foam

A technology of nanosheet array and nickel hydroxide, which is applied in the field of new material technology and chemical synthesis, can solve the problems of polluting waste types and output, deviation from the concept of green chemical synthesis, cumbersome preparation process, etc., to improve the utilization rate of atoms, Low equipment and energy requirements and high atomic economy

Active Publication Date: 2021-08-27
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of this method is cumbersome, with many procedures, and there are many types and yields of polluting waste, which deviates from the concept of green chemical synthesis

Method used

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  • A preparation method of nickel hydroxide nanosheet array material grown on the surface of nickel foam
  • A preparation method of nickel hydroxide nanosheet array material grown on the surface of nickel foam
  • A preparation method of nickel hydroxide nanosheet array material grown on the surface of nickel foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Take a piece of commercial nickel foam (0.15cm thick) and cut it into a 2x 2cm square of nickel foam. Take the cut foam nickel, place it in 50ml alcohol, ultrasonically clean it for 5 minutes, then take out the foam nickel and rinse the foam nickel with deionized water for 20 seconds.

[0036] Then place the rinsed nickel foam in 0.1M hydrofluoric acid solution and soak for 1 hour, take it out and place it in deionized water for ultrasonic cleaning for 5 minutes; after cleaning, immerse the foam nickel in 30ml of deionized water for natural oxidation for 2 days, and Under room temperature conditions, nickel hydroxide nanosheet array electrode materials grown vertically on the surface of nickel foam were obtained.

[0037] figure 1 It is a scanning electron microscope photo of the nickel hydroxide nanosheet array material grown on the surface of nickel foam obtained in this example. The photo shows the surface area of ​​the nickel foam skeleton with a magnification of ...

Embodiment 2

[0043]Take a piece of commercial nickel foam (0.15cm thick) and cut it into a 2x 2cm square of nickel foam. Take the cut foam nickel, place it in 50ml alcohol, ultrasonically clean it for 5 minutes, then take out the foam nickel and rinse the foam nickel with deionized water for 20 seconds.

[0044] Then place the rinsed nickel foam in 1M hydrofluoric acid solution to soak for 1 hour, take it out and place it in deionized water for ultrasonic cleaning for 5 minutes; Under room temperature conditions, nickel hydroxide nanosheet array electrode materials grown vertically on the surface of nickel foam are obtained.

[0045] Figure 6 It is a transmission electron micrograph of the nickel hydroxide nanosheets prepared in the present embodiment, and the photo shows a single film-like nickel hydroxide nanosheet.

[0046] Figure 7 It is a scanning electron micrograph of the nickel hydroxide nanosheet array material grown on the surface of nickel foam prepared in this example. The...

Embodiment 3

[0048] Take a piece of commercial nickel foam (0.15cm thick) and cut it into a 2x 2cm square of nickel foam. Take the cut foam nickel, place it in 50ml alcohol, ultrasonically clean it for 5 minutes, then take out the foam nickel and rinse the foam nickel with deionized water for 20 seconds.

[0049] Then place the rinsed nickel foam in 0.5M hydrofluoric acid solution and soak for 2 hours, take it out and place it in deionized water for ultrasonic cleaning for 5 minutes; after cleaning, immerse the foam nickel in 42ml deionized water for natural oxidation for 5 days, react The temperature is room temperature, and the nickel hydroxide nanosheet array electrode material vertically grown on the surface of the nickel foam can be obtained.

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Abstract

The invention relates to a method for preparing a nickel hydroxide nanosheet array material grown on the surface of foamed nickel; the foamed nickel is placed in alcohol for ultrasonic cleaning, after the foamed nickel is taken out, the foamed nickel is rinsed with deionized water, and the rinsed foam is Nickel is soaked in acid solution for 1-2 hours, taken out and placed in deionized water for ultrasonic cleaning; the foamed nickel obtained by surface activation treatment is immersed in deionized water for natural oxidation for 2-5 days, and the reaction temperature is room temperature to obtain vertical Nickel hydroxide nanosheet array material grown on the surface of nickel foam; the preparation method of the present invention does not require high temperature and high pressure reaction conditions, and does not require high-purity nickel salt as a reaction raw material, and the preparation process produces less pollutants, which is more in line with the concept of green chemical synthesis , and low cost.

Description

technical field [0001] The invention belongs to the field of new material technology and chemical synthesis technology, specifically relates to a preparation method of nickel hydroxide nanosheet array material grown on the surface of nickel foam, and provides a preparation method with simple process, green environmental protection and low cost. Background technique [0002] In today's society, with the increasing energy and environmental problems, the development of new energy storage and conversion materials has become the key to the utilization of renewable energy. Nickel hydroxide is an important electrochemical energy storage and conversion material. It is often used as an electrode material for nickel-metal hydride batteries, an electrode material for supercapacitors, an anode oxygen evolution reaction catalyst for water electrolysis, and for the synthesis of other types of nickel-based composite materials. [0003] Nickel hydroxide has the advantages of high theoretica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G53/04B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G53/04C01P2004/03C01P2004/04C01P2004/61C01P2006/80
Inventor 邓意达胡庆丰李文博胡文彬钟澄张金凤韩晓鹏
Owner TIANJIN UNIV
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