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A kind of method for preparing nickel phosphide/graphene composite film material

A graphene composite and thin-film material technology, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors, etc., can solve the problems of harsh reaction conditions and high reaction temperature, and achieve easy large-scale production and simple and easy-to-control experimental methods Effect

Inactive Publication Date: 2017-06-23
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of these methods use metal nanoparticles as reactants, and the reaction temperature is high and the reaction conditions are harsh; the products obtained are mainly powder materials.

Method used

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  • A kind of method for preparing nickel phosphide/graphene composite film material
  • A kind of method for preparing nickel phosphide/graphene composite film material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh 31 mg of graphene oxide, add it into 30 mL of deionized water, and ultrasonically disperse to form a uniform dispersion, then weigh 31 mg of red phosphorus and dissolve it in the above dispersion, and ultrasonicate for 2 hours. The dispersion of graphene oxide and red phosphorus was added to the polytetrafluoroethylene lining of the hydrothermal kettle, and a 1×2 cm 2 The nickel foam is immersed in the dispersion, and the stainless steel jacket is tightened and placed at 180°C for 12 hours. The product was washed, dried and stored for later use. The prepared nickel phosphide / graphene as attached figure 1 shown.

Embodiment 2

[0021] Weigh 31 mg of graphene oxide, add it into 30 mL of deionized water, and ultrasonically disperse to form a uniform dispersion, then weigh 15.5 mg of red phosphorus and dissolve it in the above dispersion, and ultrasonicate for 1 hour. The dispersion of graphene oxide and red phosphorus was added to the polytetrafluoroethylene lining of the hydrothermal kettle, and a 1×2 cm 2 The nickel foam is immersed in the dispersion, and the stainless steel jacket is tightened and then kept at 210°C for 24 hours. The product was washed, dried and stored for later use.

Embodiment 3

[0023] Weigh 40 mg of graphene oxide, add it into 30 mL of deionized water, and ultrasonically disperse to form a uniform dispersion, then weigh 8 mg of red phosphorus and dissolve it in the above dispersion, and ultrasonicate for 0.5 hours. The dispersion of graphene oxide and red phosphorus was added to the polytetrafluoroethylene lining of the hydrothermal kettle, and a 1×2 cm 2 The nickel foam is immersed in the dispersion, and the stainless steel jacket is tightened and then kept at 150°C for 36 hours. The product was washed, dried and stored for later use. The prepared nickel phosphide / graphene as attached figure 2 shown.

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Abstract

The invention discloses a nickel phosphide / graphene composite film preparing method. The method includes under the ultrasonic effect, dispersing graphene oxide and red phosphorus in deionized water to obtain dispersion, transferring dispersion to a hydrothermal reactor, soaking a metal nickel substrate (nickel foam, nickel plate or nickel mesh) into the dispersion, and carrying out hydrothermal reaction to obtain nickel phosphide / graphene composite film material. The preparing method is simple and easy to implement, the reaction conditions are mild, material cost is low, and large-scale production and utilization are facilitated.

Description

technical field [0001] The invention relates to a method for preparing a nickel phosphide / graphene composite film material, in particular to a method for preparing an energy storage (supercapacitor, battery) electrode material. Background technique [0002] In recent years, the energy crisis and environmental pollution have become global problems. In order to realize the sustainable development of society, the development and utilization of new energy (solar energy, wind energy, tidal energy, etc.) has received extensive attention. With the development of new energy sources, our requirements for energy storage equipment are getting higher and higher. [0003] As a new type of energy storage device, supercapacitors have the advantages of high power density, long cycle life, and fast charging and discharging, and are widely used in computers, consumer electronics, electric vehicles, aerospace and other fields. The electrode materials of supercapacitors mainly include carbon-b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86H01G11/30H01G11/32
CPCY02E60/13
Inventor 赵崇军王倩孙彩侠沈海超张雨潇钱秀珍张金朝
Owner EAST CHINA UNIV OF SCI & TECH
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