Thin film electrode and preparation method thereof

A thin-film electrode and thin-film technology, applied in the field of thin-film electrodes and preparation, can solve the problems of poor flexibility of boron-doped diamond electrodes and the like

Active Publication Date: 2021-09-03
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a thin film electrode and its preparation method, aiming to solve the technical problem of poor flexibility of existing boron-doped diamond electrodes

Method used

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preparation example Construction

[0020] On the one hand, an embodiment of the present invention provides a method for preparing a thin film electrode, comprising the following steps:

[0021] S01: providing a flexible substrate, placing the flexible substrate in a nanodiamond suspension, and performing adsorption treatment to obtain a flexible substrate with a single layer of nanodiamond particles adsorbed on its surface;

[0022] S02: performing boron doping treatment on the single-layer nano-diamond particles adsorbed on the surface of the flexible substrate to obtain a first boron-doped diamond film;

[0023] S03: growing a porous sheet-shaped boron-doped diamond film on the first boron-doped diamond film to form a second boron-doped diamond film to obtain a film electrode;

[0024] Wherein, the first boron-doped diamond film and the second boron-doped diamond film constitute the film electrode.

[0025] The preparation method of the thin film electrode provided by the embodiment of the present invention ...

Embodiment 1

[0052] A method for preparing a thin film electrode, comprising the steps of:

[0053] Step 1, the flexible substrate (aluminum flake) was ultrasonically cleaned in ethanol solution for 10 min, then ultrasonically cleaned in deionized water for 5 min, and finally washed with N 2 blow dry.

[0054] Step 2, preparing nano-diamond suspension (pH is 3) is crystal planting solution: adopt behenic acid amidopropyl dimethyl dihydroxypropyl ammonium chloride as dispersant, deionized water as solvent, dispersant The concentration is 10 -7 mol / L, and then add the detonation nano-diamond powder to the dispersant solution, the mass concentration of nano-diamond is 0.005%wt.%. The nano-diamond suspension is ultrasonically oscillated for 15min to fully disperse the diamond nanoparticles.

[0055] Step 3: Take the crystal-planting solution in step 3, put the flexible substrate into the crystal-planting solution, and perform ultrasonic treatment for 30 minutes, so that the nano-diamond part...

Embodiment 2

[0060] A method for preparing a thin film electrode, comprising the steps of:

[0061] Step 1, the flexible substrate (copper sheet) was ultrasonically cleaned in ethanol solution for 10 min, then ultrasonically cleaned in deionized water for 5 min, and finally cleaned with N 2 blow dry.

[0062] Step 2, the preparation of nano-diamond suspension (pH is 3) is the crystal planting solution: using 3-chloro-2-hydroxypropyltrimethylammonium chloride as the dispersant, deionized water as the solvent, the concentration of the dispersant for 10 -7 mol / L, and then add the detonation nano-diamond powder to the dispersant solution, the mass concentration of nano-diamond is 0.005%wt.%. The nano-diamond suspension is ultrasonically oscillated for 15min to fully disperse the diamond nanoparticles.

[0063] Step 3: Take the above-mentioned crystal-planting solution, put the flexible substrate into the crystal-planting solution, and perform ultrasonic treatment for 30 minutes, so that the ...

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Abstract

The invention belongs to the technical field of functional thin film materials, and in particular relates to a thin film electrode and a preparation method. The preparation method comprises the steps of: providing a flexible substrate, placing the flexible substrate in a nano-diamond suspension, and performing adsorption treatment to obtain a flexible substrate with a single layer of nano-diamond particles adsorbed on the surface; adsorbing the flexible substrate on the surface The single-layer nano-diamond particles are subjected to boron doping treatment to obtain the first boron-doped diamond film; on the first boron-doped diamond film, a porous sheet-shaped boron-doped diamond film is grown to form a second boron-doped diamond film to obtain a film An electrode; wherein, the first boron-doped diamond film and the second boron-doped diamond film constitute the film electrode. The preparation method can prepare a double-layer porous boron-doped diamond film electrode with a high specific surface area in a large area, has simple process and low cost, and is suitable for industrialized mass production.

Description

technical field [0001] The invention belongs to the technical field of functional thin film materials, and in particular relates to a thin film electrode and a preparation method. Background technique [0002] Supercapacitors are also called electrochemical capacitors. As an emerging energy storage device between traditional capacitors and batteries, supercapacitors have excellent charge and discharge performance, high energy and power density, long cycle life and safety factor. Advanced features, has now become a new type of green energy devices. [0003] In a supercapacitor, the electrode material is the key, which determines the performance index of the entire device. Commonly used electrode materials include carbon materials, conductive polymers, and metal oxide materials. Carbon materials are one of the ideal electrode materials for supercapacitors due to their good electrical and mechanical properties, corrosion resistance, chemical and high temperature stability, et...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86H01G11/26H01G11/30H01G11/32H01G11/36
CPCH01G11/26H01G11/30H01G11/32H01G11/36H01G11/86Y02E60/13
Inventor 唐永炳王陶徐阳黄磊
Owner SHENZHEN INST OF ADVANCED TECH
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