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Graphene electrode material and preparation method thereof

A graphene electrode, graphene technology, applied in the direction of graphene, conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, etc., to achieve the effect of easy installation and access

Inactive Publication Date: 2019-08-27
徐新敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method does not effectively solve the above technical problems

Method used

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  • Graphene electrode material and preparation method thereof
  • Graphene electrode material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Wash the copper wire with a diameter of 20um in 95% ethanol, deionized water and 25% hydrochloric acid solution for 8 minutes, and then dry it in high-purity nitrogen; soak the dried copper wire in a concentration of 1mol / L Fe(NO 3 ) 3 In the aqueous solution, the immersion time is 45s, and the copper wire passes through the Fe(NO 3 ) 3 Corrosion occurs in the aqueous solution. After taking out the copper wire, stretch the two ends of the copper wire to keep the copper wire in a straight state; first rinse the corroded copper wire with a 25% hydrochloric acid solution, and then rinse it with deionized water , and finally dry it in high-purity nitrogen; place the copper wire on the quartz slide, and push the quartz slide to the position where the outer end of the quartz tube is close to the thermocouple. After pumping the inside of the device to a pressure ≤ 5Pa, then introduce hydrogen into the device to restore the internal pressure to normal pressure; then keep fee...

Embodiment 2

[0018] Wash the copper wire with a diameter of 20um in 95% ethanol, deionized water and 25% hydrochloric acid solution for 15 minutes, and then dry it in high-purity nitrogen; soak the dried copper wire in a concentration of 3mol / L of Fe(NO 3 ) 3 In the aqueous solution, the immersion time is 60s, and the copper wire passes through the Fe(NO 3 ) 3 Corrosion occurs in the aqueous solution. After taking out the copper wire, stretch the two ends of the copper wire to keep the copper wire in a straight state; first rinse the corroded copper wire with a 25% hydrochloric acid solution, and then rinse it with deionized water , and finally dry it in high-purity nitrogen; place the copper wire on the quartz slide, and push the quartz slide to the position where the outer end of the quartz tube is close to the thermocouple. After pumping the inside of the device to a pressure ≤ 5Pa, then introduce hydrogen into the device to restore the internal pressure to normal pressure; then keep...

Embodiment 3

[0021] Wash the copper wire with a diameter of 20um in 95% ethanol, deionized water and 25% hydrochloric acid solution for 12 minutes, and then dry it in high-purity nitrogen; soak the dried copper wire in a concentration of 2mol / L Fe(NO 3 ) 3 In the aqueous solution, the immersion time is 50s, and the copper wire passes through the Fe(NO 3 ) 3 Corrosion occurs in the aqueous solution. After taking out the copper wire, stretch the two ends of the copper wire to keep the copper wire in a straight state; first rinse the corroded copper wire with a 25% hydrochloric acid solution, and then rinse it with deionized water , and finally dried in high-purity nitrogen;

[0022] Place the copper wire on the quartz slide, and push the quartz slide to the position where the outer end of the quartz tube is close to the thermocouple. After pumping the inside of the device to a pressure ≤ 5Pa, then introduce hydrogen into the device to restore the internal pressure to normal pressure; the...

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Abstract

The invention discloses a graphene electrode material and a preparation method thereof, and relates to the technical field of carbon nanomaterial preparation. The graphene electrode material is prepared from polymethyl methacrylate and a graphene film. The preparation method comprises the steps of carrying out annealing treatment on a copper wire at 950-1,000 DEG C to serve as a graphene growth carrier, taking acetylene as a carbon source, taking hydrogen as a protective gas, preserving heat at 950-1,000 DEG C for 3-4h, and fully depositing carbon atoms on the surface of the copper wire to generate single-layer graphene; and taking the polymethyl methacrylate as a bonding agent to prepare a PMMA / graphene / copper wire, and then corroding the copper wire with an Fe(NO3)3 solution to prepare PMMA / graphene. According to the preparation method provided by the invention, the copper wire is subjected to the annealing treatment, so that the carbon atoms are easily deposited and bonded on the surfaces of copper atoms to generate the single-layer graphene; and by using the methyl methacrylate, the prepared graphene material can be shaped and bonded, so that the graphene is convenient to install and take when being used for preparing the electrode.

Description

technical field [0001] The invention relates to the technical field of carbon nanomaterial preparation, in particular to a graphene electrode material and a preparation method thereof. Background technique [0002] Graphene is only composed of carbon elements. Each carbon atom adopts sp2 hybridization to form a carbon-carbon covalent bond. Graphene can expand infinitely in the plane, but only has one atomic scale in the direction perpendicular to the plane. Therefore, graphene It can be defined as a two-dimensional nanomaterial with excellent properties of nanomaterials. The mass of graphene electrons is close to zero, and its motion speed in the orbit reaches 1 / 300 of the speed of light. Its conduction band and valence band electrons intersect near the Fermi level, and its carriers show a linear dispersion relationship. Therefore, graphite Oxene has a unique electronic structure and electrical properties, so it has great application potential in the technical fields of con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B1/24C01B32/186B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01B32/186H01B1/24H01B13/00
Inventor 徐新敏
Owner 徐新敏
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