Preparation method of grapheme-nanometer precious metal composite pipe

A technology of graphene and precious metals, applied in the field of nanomaterials, can solve the problems of reducing the conductivity of graphene, and achieve the effects of simple operation, excellent mobility, and strong repeatability

Inactive Publication Date: 2017-07-04
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Publication number CN102586869A discloses a preparation method of a three-dimensional graphene tube, the graphene tube skeleton material is organic materials such as polyvinylidene fluoride, polyethylene glycol, polymethacrylic acid, etc. While increasing the strength, it undoubtedly reduces important parameters such as the conductivity of graphene.
However, there is no graphene / wire composite structure deposited on the surface of the metal wire as the growth substrate, and then coated with noble metal nanoparticles on the surface of the graphene, and finally the graphene is prepared by removing the substrate (wire)- Related reports on nano-noble metal composite tubes

Method used

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  • Preparation method of grapheme-nanometer precious metal composite pipe
  • Preparation method of grapheme-nanometer precious metal composite pipe

Examples

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Embodiment 1

[0031] A preparation method of graphene-nano noble metal composite tube, comprising the following steps:

[0032] Step 1: Take a copper wire with a diameter of 15 μm and a length of 5 cm and soak it in 0.1 mol / L dilute nitric acid for 2 minutes to remove surface impurities and passivation layer, then place it in anhydrous ethanol for 20 minutes, and then place it in a blast drying oven at 60°C Dry for 2 hours and dry for later use;

[0033] Step 2. Put the dried copper wire as the growth substrate into the chemical vapor deposition equipment. The reaction atmosphere is a mixture of hydrogen and nitrogen. At a heating rate of 30°C / min, heat to 1000°C and keep the temperature constant for 60 minutes. Enter ethanol vapor 10sccm to react, stop feeding ethanol vapor after the reaction finishes, cool to room temperature rapidly, obtain graphene / copper wire composite structure;

[0034] Step 3, by magnetron sputtering, under the condition that the deposition rate is 20nm / s, a nano-g...

Embodiment 2

[0037] A preparation method of graphene-nano noble metal composite tube, comprising the following steps:

[0038] Step 1. Take a nickel wire with a diameter of 15 μm and a length of 5 cm and soak it in 0.1 mol / L dilute nitric acid for 2 minutes to remove surface impurities and passivation layer, then place it in anhydrous ethanol for 20 minutes, and then place it in a blast drying oven at 60°C Dry for 2 hours and dry for later use;

[0039] Step 2. Put the dried nickel wire as the growth substrate into the chemical vapor deposition equipment. The reaction atmosphere is a mixture of hydrogen and nitrogen. At a heating rate of 30°C / min, heat to 1000°C and keep the temperature constant for 60 minutes. Enter ethanol vapor 10sccm to react, stop feeding ethanol vapor after the reaction finishes, rapidly cool to room temperature, obtain graphene / nickel wire composite structure;

[0040] Step 3, by magnetron sputtering, under the condition that the deposition rate is 20nm / s, deposit ...

Embodiment 3

[0043] A kind of preparation method of graphene-nano noble metal composite tube is characterized in that, comprises the following steps:

[0044] Step 1: Take a copper wire with a diameter of 15 μm and a length of 5 cm and soak it in 0.1 mol / L dilute nitric acid for 2 minutes to remove surface impurities and passivation layer, then place it in anhydrous ethanol for 20 minutes, and then place it in a blast drying oven at 60°C Dry for 2 hours and dry for later use;

[0045] Step 2. Put the dried copper wire as the growth substrate into the chemical vapor deposition equipment. The reaction atmosphere is a mixture of hydrogen and nitrogen. At a heating rate of 20°C / min, heat to 1050°C and keep the temperature constant for 30 minutes. Enter ethanol vapor 20sccm to react, stop feeding ethanol vapor after the reaction finishes, cool to room temperature rapidly, obtain graphene / copper wire composite structure;

[0046] Step 3, by magnetron sputtering, under the condition that the dep...

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Abstract

The invention discloses a preparation method of a grapheme-nanometer precious metal composite pipe. The preparation method comprises the steps: (1) immersing a metal wire in dilute nitric acid, placing the metal wire into anhydrous ethanol for ultrasound and then drying; (2) placing the dried metal wire into chemical vapor deposition equipment to grow grapheme on the surface of the metal wire, and obtaining a grapheme / metal wire composite structure; (3) depositing a nanometer precious metal particle coating on the grapheme surface of the grapheme / metal wire composite structure; (4) placing the composite structure obtained into etching liquid, removing the metal wire, then cleaning and drying to obtain the grapheme-nanometer precious metal composite pipe. The preparation method disclosed by the invention has the features of easy operation, high repeatability and no environmental pollution. The grapheme-nanometer precious metal composite pipe provided by the invention is high in mobility, mechanical strength, thermal conductivity and corrosion resistance, and is applied to the fields of microelectronics, transparent electrodes, organic photovoltaic devices, energy storage batteries, multifunctional composites, biomedicine, etc.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a preparation method of a graphene-nano gold composite tube. Background technique [0002] Graphene is a two-dimensional allotrope of carbon. Since the research team of the University of Manchester successfully obtained single-layer graphene by micromechanical exfoliation in 2004, graphene has attracted extensive attention from researchers from all over the world. Although other allotropes of carbon such as carbon nanotubes, fullerenes, etc. are composed of sp2 hybridized carbon atoms similar to graphene, in terms of mobility, room temperature Hall effect, Dirac electronic structure, light transmittance, None of these allotropes can match graphene in properties such as mechanical strength and thermal conductivity. Because of these attractive properties, graphene has broad application prospects in many fields such as microelectronics, transparent electrode...

Claims

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Application Information

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IPC IPC(8): C23C16/26C23C16/02C23C14/35C23C14/18C23C14/58C23C28/00B22F1/02B82Y30/00
CPCC23C14/185C23C14/35C23C14/5873C23C16/0227C23C16/26C23C28/32C23C28/343B82Y30/00B22F1/0547B22F1/07B22F1/17
Inventor 米睿付志兵王朝阳黄维钟铭龙刘淼李昊袁磊杨曦赵海波
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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