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Fixture and preparation method for staggered-type large-scale preparation of graphene

A large-scale preparation and graphene technology, which is applied in the jig and preparation field for the staggered large-scale preparation of graphene, can solve the problems such as the easy deformation of metal catalysts, the limitation of the number of graphene, and the reduction of the growth quality of graphene products. Quantity, easy operation, and the effect of avoiding sticking

Active Publication Date: 2015-04-08
CHONGQING GRAPHENE TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing CVD preparation process of graphene, the metal catalyst substrate is generally placed directly inside the quartz tube, and one to several pieces can be placed according to the size of the heating equipment, and the number of single-grown graphene is limited by the size of the quartz tube
Moreover, the metal catalyst is easily deformed and wrinkled at high temperature, which reduces the growth quality of graphene products.

Method used

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  • Fixture and preparation method for staggered-type large-scale preparation of graphene
  • Fixture and preparation method for staggered-type large-scale preparation of graphene
  • Fixture and preparation method for staggered-type large-scale preparation of graphene

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as figure 1 As shown, the fixture of this embodiment includes two vertically arranged support frames 1, and the two support frames 1 are fixedly connected by two parallel support rods 2, and the two ends of the two support rods 2 are respectively connected to the two The top of each support frame 1 is fixed, and the two support rods 2 are on the same horizontal plane and there is a gap between the two support rods 2, and two support rods 3 are placed on the two support rods 2. The material of the support frame 1 , the support rod 2 and the support rod 3 is a high-temperature-resistant hard material or an ordinary hard material with a high-temperature-resistant layer spin-coated on the surface. The vertical section of the support frame 1 is square or trapezoidal or semicircular, and the support rod 3 is a cylindrical rod with a diameter of 1-10 mm.

[0028] Such as image 3 Clean and pre-treat the jig and buffer layer as shown in Fig. 1: Clean the jig and buffer l...

Embodiment 2

[0033] Such as figure 1 As shown, the fixture of this embodiment includes two vertically arranged support frames 1, and the two support frames 1 are fixedly connected by two parallel support rods 2, and the two ends of the two support rods 2 are respectively connected to the two The top of each support frame 1 is fixed, and the two support rods 2 are on the same horizontal plane and there is a gap between the two support rods 2, and two support rods 3 are placed on the two support rods 2. The material of the support frame 1 , the support rod 2 and the support rod 3 is a high-temperature-resistant hard material or an ordinary hard material with a high-temperature-resistant layer spin-coated on the surface. The vertical section of the support frame 1 is square or trapezoidal or semicircular, and the support rod 3 is a cylindrical rod with a diameter of 1-10 mm.

[0034] Cleaning and pretreatment of the fixture and polytetrafluoroethylene high-temperature cloth: ultrasonically c...

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Abstract

The invention relates to a fixture and a preparation method for staggered-type large-scale preparation of graphene. The fixture comprises two support frames which are vertically arranged, wherein two support frames are fixedly connected by virtue of two support rods which are arranged in parallel, both ends of each of two support rods are respectively vertically and fixedly connected with the upper parts of two support frames, two support rods are located at the same horizontal plane, a gap is reserved between two support rods and at least two support bars are arranged above two support rods. The fixture has the beneficial effects that the limitation of the size of the existing quartz tube on the number of single growth is broken, a metal catalyst is separated from the wall of the quartz tube by virtue of the support frames and thus the adhesion between the metal catalyst and the wall of the quartz tube at a high temperature is avoided, so that the metal catalyst is further wrinkled; by using the support frames and a buffer layer, the growth quality of graphene is improved and the number of graphene in the single growth is increased and the fixture is simple and convenient to operate and is suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of graphene preparation, in particular to a jig and a preparation method for large-scale preparation of graphene in an interlaced manner. Background technique [0002] Graphene is a honeycomb single-layer carbon material composed of carbon atoms according to sp2 hybridization bonds. Its special crystal structure endows graphene with many excellent physical properties, such as room temperature quantum Hall effect, high carrier mobility, high thermal Conductivity, long-range ballistic transport properties, etc. These excellent physical properties make graphene one of the most promising electronic materials. [0003] At present, the methods for preparing graphene mainly include mechanical exfoliation, SiC crystal epitaxial growth, graphite oxide reduction and chemical vapor deposition on transition metals. The mechanical exfoliation method is mainly used in the laboratory to prepare high-quality graphene samp...

Claims

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Application Information

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IPC IPC(8): C01B31/04
Inventor 张永娜李占成高翾黄德萍朱鹏姜浩史浩飞
Owner CHONGQING GRAPHENE TECH
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