Preparation method of nickel hydroxide nanosheet array material growing on surface of foamed nickel

A nanosheet array, nickel hydroxide technology, applied in the field of new material technology and chemical synthesis, can solve the problems of many types and yields of polluting wastes, deviation from the concept of green chemical synthesis, cumbersome preparation process, etc. The effect of low equipment and energy requirements and high atomic economy

Active Publication Date: 2019-07-23
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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  • Preparation method of nickel hydroxide nanosheet array material growing on surface of foamed nickel
  • Preparation method of nickel hydroxide nanosheet array material growing on surface of foamed nickel
  • Preparation method of nickel hydroxide nanosheet array material growing on surface of foamed nickel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 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.

[0037] 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 are obtained.

[0038] 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 2...

Embodiment 2

[0044]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.

[0045] 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.

[0046] 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.

[0047] 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

[0049] 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.

[0050] 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 preparation method of a nickel hydroxide nanosheet array material growing on the surface of foamed nickel. The preparation method comprises steps as follows: foamed nickel is placed in ethanol for ultrasonic cleaning, taken out and washed by deionized water, and washed foamed nickel is soaked in an acid solution for 1-2 h, taken out and then placed in the deionized waterfor ultrasonic cleaning; foamed nickel obtained after surface activation treatment is immersed in the deionized water and subjected to natural oxidation for 2-5 days, the reaction temperature is roomtemperature, and the nickel hydroxide nanosheet array material vertically growing on the surface of foamed nickel is obtained. According to the preparation method, high-temperature and high-pressurereaction conditions are not required, high-purity nickel salt is not needed to serve as the reaction raw material, fewer pollutants are produced in a preparation process, and therefore, the preparation method meets the green chemistry synthesis concept and is low in 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 Applications(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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