A kind of composite electrode material based on zr-cu-based amorphous alloy and preparation method thereof

A composite electrode and amorphous alloy technology, which is used in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., can solve the problems that the reaction parameters of the composite electrode are difficult to control, the deposition process cannot be observed, and the hydrothermal method takes a long time. Good redox activity, optimized synthesis route, low cost effect

Inactive Publication Date: 2021-07-27
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The reaction parameters of the composite electrode prepared by this method are not easy to control, and the hydrothermal method has many disadvantages such as long time, waste of energy, and inability to observe the deposition process.

Method used

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  • A kind of composite electrode material based on zr-cu-based amorphous alloy and preparation method thereof
  • A kind of composite electrode material based on zr-cu-based amorphous alloy and preparation method thereof
  • A kind of composite electrode material based on zr-cu-based amorphous alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The zirconium rods and copper rods with a purity of 99.99% are polished off the surface oxide layer and cleaned with ethanol ultrasonically, according to the alloy composition Zr 50 Cu 50 The atomic ratio of Zr element and Cu element (Zr: 50at.%, Cu: 50at.%) accurately weighed a total of about 10g, put it into a vacuum non-consumable arc melting furnace, and melt it in an argon atmosphere , the arc temperature of each smelting is about 2500 ℃, and the smelting time is 5 minutes, and the next smelting will be carried out after the furnace is cooled and turned over. Melting 5 times until the alloy is evenly mixed to obtain a master alloy ingot.

[0038] Take about 3g of the master alloy and place it in a quartz tube with an opening of about 1mm at the bottom, and pump a high vacuum to 3×10 in a quenching strip machine. -3 Argon is filled after Pa, and the master alloy is melted by induction heating (induction current 20A) in an argon atmosphere, and the melt is sprayed ...

Embodiment 2

[0049] The preparation of nanoporous copper is the same as in Example 1, except that the electrochemical deposition time is changed to 60s to prepare the nickel hydroxide / nanoporous copper composite material, and other steps are the same as in Example 1.

[0050] The specific capacitance of the composite supercapacitor prepared in this example is 450.4 F / g.

Embodiment 3

[0052] The preparation of nanoporous copper is the same as in Example 1, except that the electrochemical deposition time is changed to 90s to prepare the nickel hydroxide / nanoporous copper composite material, and the rest of the steps are the same as in Example 1.

[0053] The specific capacitance of the composite supercapacitor prepared in this example is 584.1 F / g.

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Abstract

The invention relates to a Zr-Cu-based amorphous alloy composite electrode material and a preparation method thereof. The material includes an amorphous core in the middle, a nanoporous copper layer on both sides of the core, and nickel hydroxide particles on the copper layer; wherein, the composition of the amorphous matrix is ​​copper-zirconium alloy, and the ligament and aperture width of the nanoporous copper layer are Both are 50-100nm, the thickness is about 2-3μm, the deposited nickel hydroxide particle size is about 200-400nm, and the loading capacity is 0.3-1.0mg / cm 2 . The copper-zirconium alloy is Zr 30～70 Cu 70～30 . The present invention can adjust the electrochemical deposition condition by adjusting the voltage, time, electrolyte concentration, etc. of the electrochemical deposition, and the deposition time is short, without heating, and the process is visible, and the prepared composite material can be directly used as an electrode material of a supercapacitor.

Description

technical field [0001] The invention mainly belongs to the technical field of synthesis of supercapacitor electrode materials, in particular to a preparation method of a Zr-Cu-based amorphous alloy-based nickel hydroxide / nanoporous copper composite electrode material and its application in the field of supercapacitors. Background technique [0002] With the development and progress of science and technology, the traditional energy is further consumed, and the problem of environmental pollution is becoming more and more prominent. Therefore, people put forward new requirements for the field of high-power energy storage. Supercapacitors, also known as electrochemical capacitors, are widely used in hybrid power equipment and aerospace fields because of their high power density, fast charge and discharge speed, good cycle stability and environmental friendliness. The main factor determining the performance of capacitors is the structure and composition of capacitor electrode mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/30H01G11/24H01G11/26H01G11/86
CPCH01G11/24H01G11/26H01G11/30H01G11/86Y02E60/13
Inventor 夏超群朱德民李强杨泰杨志道宋光明宋来昂王鹏
Owner HEBEI UNIV OF TECH
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