Preparation method and application of nickel phosphide nano film

A technology of nano-film and nickel phosphide, applied in the field of nano-materials, can solve the problems of inflammability and explosion, and achieve the effects of good durability, economical and effective preparation method, simple and rapid preparation method

Inactive Publication Date: 2016-09-07
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Other fuel and gas will gather on the ground and constitute a flammable and explosive hazard.

Method used

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  • Preparation method and application of nickel phosphide nano film
  • Preparation method and application of nickel phosphide nano film
  • Preparation method and application of nickel phosphide nano film

Examples

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preparation example Construction

[0052] The preparation method of nickel phosphide nano film of the present invention is:

[0053] 1) Cut the commercial nickel foam into 2×4cm size, first ultrasonically in 2~4mol / l dilute hydrochloric acid for 15~25min to remove surface oxides and some sundries, then in acetone and ultrapure water respectively Each ultrasonic wave was carried out for 15-25 minutes. This process was carried out at room temperature, and then rinsed with a large amount of water to remove impurities such as surface oxides and organic matter. Finally, it was placed in a vacuum oven and dried at 35-45°C for use;

[0054] 2) Anodic oxidation: use the nickel foam washed in step 1) as an anode, and use a DC stable power supply to perform anodic oxidation in an oxalic acid solution of 0.15-0.35mol / L. The set voltage is 25-30V, and the temperature is - 5~0℃, the time is 5~10min. After the reaction, the obtained sample is washed with a large amount of water and absolute ethanol, and then dried in a vacuu...

Embodiment 1

[0057] The preparation method of nickel phosphide nano film of the present invention is:

[0058] 1) Cut the commercial nickel foam into a size of 2×4cm, first ultrasonically in 3mol / l dilute hydrochloric acid for 15min to remove surface oxides and some impurities, then ultrasonically in acetone and ultrapure water for 15min respectively, This process is carried out at room temperature, and then rinsed with a large amount of water to remove impurities such as surface oxides and organic matter, and finally placed in a vacuum oven and dried at 40°C for use;

[0059] 2) Anodizing: use the nickel foam washed in step 1) as an anode, and use a DC stabilized power supply to perform anodic oxidation in a 0.25mol / L oxalic acid solution. The set voltage is 25V, the temperature is -5°C, and the time is After the reaction, the obtained sample was washed with a large amount of water and absolute ethanol, and then dried in a vacuum oven at 60°C to obtain nickel oxalate@foam nickel;

[0060...

Embodiment 2

[0074] The preparation method of nickel phosphide nano film of the present invention is:

[0075] 1) Cut the commercial nickel foam into a size of 2×4cm, first ultrasonically in 2mol / l dilute hydrochloric acid for 25min to remove surface oxides and some impurities, then ultrasonically in acetone and ultrapure water for 20min respectively, This process is carried out at room temperature, and then rinsed with a large amount of water to remove impurities such as surface oxides and organic matter, and finally placed in a vacuum oven and dried at 40°C for use;

[0076] 2) Anodic oxidation: use the nickel foam washed in step 1) as an anode, and use a DC stable power supply to perform anodic oxidation in a 0.15mol / L oxalic acid solution. The set voltage is 30V, the temperature is -2°C, and the time is After the reaction, the obtained sample was washed with a large amount of water and absolute ethanol, and then dried in a vacuum oven at 65°C to obtain nickel oxalate@foam nickel;

[0...

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Abstract

The invention discloses a preparation method of a nickel phosphide nano film. The method comprises the following steps: (1) cleaning and drying the foam nickel; (2) using the foam nickel after cleaning and drying in the step (1) as an anode, and conducting anodic oxidation by using a DC stable power supply in an oxalic acid solution to obtain nickel oxalate @ nickel foam; (3) placing the nickel oxalate @ nickel foam prepared in the step (2) in the middle of a tube furnace, placing sodium hypophosphite in the downstream of the tube furnace, and setting temperature control procedures in an inert gas stream as below: heating at the rate of 2-4 DEG C / min to 380-450 DEG C, maintaining for 2-4 h, and then cooling to room temperature naturally to obtain the nickel phosphide nano film. The method employs first anodic oxidation, and then low temperature phosphatization to prepare the nickel phosphide nano film. Compared with other methods, the method has no addition of nickel source in the preparation process, and is simple, rapid effective and economical.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a nickel phosphide nanometer film and its preparation method and application. Background technique [0002] Nanomaterials refer to materials with at least one dimension in the nanoscale range (1-100nm) or composed of them as basic units in three-dimensional space, which is approximately equivalent to the scale where 10-100 atoms are closely arranged together. Nanomaterials can be divided into three-dimensional materials, two-dimensional materials and zero-dimensional materials according to their dimensions. Nanomaterials have been extensively studied in various fields in the past decade because of their special properties at the microscopic scale. Among them, there are also related theoretical researches in material chemistry, physics, biological science, new energy science and computing science. [0003] Today's world consumes a lot of fossil fuels, lea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/34C25B11/06C25B1/04B01J27/185C01B25/08
CPCB01J27/1853C01B25/08C25B1/04C25B11/04C25D11/34Y02E60/36
Inventor 卢小泉严小雨马琴李文奇王彩荷张静马巧玲宁星铭
Owner NORTHWEST NORMAL UNIVERSITY
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