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Clamp for preparing graphene in double type manner and method for preparing graphene

A graphene and jig technology, which is applied to the jig for multiplying graphene preparation and the field of graphene preparation, can solve the problems of waste of resources, reduced graphene yield, easy deformation, etc., and achieves improved qualification rate, easy processing, structure simple effect

Active Publication Date: 2015-04-01
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI +1
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  • Application Information

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Problems solved by technology

[0004] In the existing CVD preparation process of graphene, the graphene growth substrate is generally placed directly inside the quartz tube, and the graphene growth substrate is easily deformed at high temperature, and adheres to the quartz tube wall, resulting in a reduction in the yield of graphene; due to The space of the heating equipment is limited, which limits the size and quantity of graphene films grown at a time, and the space utilization rate of the existing heating equipment is not high, resulting in a waste of resources

Method used

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  • Clamp for preparing graphene in double type manner and method for preparing graphene
  • Clamp for preparing graphene in double type manner and method for preparing graphene
  • Clamp for preparing graphene in double type manner and method for preparing graphene

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specific Embodiment 1

[0035] A fixture for multiplying prepared graphene, comprising two support frames 1 and several horizontal support rods 3, the two support frames 1 are relatively parallel, and the two ends of the horizontal support rods 3 are respectively connected to the two support frames The upper part of 1 is fixed, several horizontal support rods 3 are arranged parallel to each other and evenly spaced horizontally, and several horizontal support rods 3 are perpendicular to the two support frames 1 . The support frame 1 is provided with a through hole 4 . The support frame 1 has a square or trapezoidal vertical section or a semicircular bottom. The support frame 1, the horizontal support rods 3 and the growth substrate support rods 2 are made of high temperature resistant hard material or a high temperature resistant layer is spin-coated on the surface of the hard material. The distance between adjacent horizontal support rods 3 is 5-10mm.

[0036] A kind of preparation method of graphe...

specific Embodiment 2

[0041] A fixture for multiplying prepared graphene, comprising two support frames 1 and several horizontal support rods 3, the two support frames 1 are relatively parallel, and the two ends of the horizontal support rods 3 are respectively connected to the two support frames The upper part of 1 is fixed, several horizontal support rods 3 are arranged parallel to each other and evenly spaced horizontally, and two growth substrate support rods 2 are arranged above several horizontal support rods 3 . The support frame 1 is provided with a through hole 4 . The support frame 1 has a square or trapezoidal vertical section or a semicircular bottom. The support frame 1, the horizontal support rods 3 and the growth substrate support rods 2 are made of high temperature resistant hard material or a high temperature resistant layer is spin-coated on the surface of the hard material. The interval between adjacent horizontal support rods 3 is 5-10mm.

[0042] A kind of preparation method ...

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Abstract

The invention relates to the technical field of graphene preparation and particularly relates to a clamp for preparing graphene in a double type manner and a method for preparing graphene. The clamp comprises two supporting frames and a plurality of horizontal supporting rods, wherein the two supporting frames are parallely arranged in an opposite manner, both ends of each horizontal supporting rod are respectively fixed with the upper parts of the two supporting frames, the horizontal supporting rods are mutually parallel and horizontally arranged uniformly at intervals, and the horizontal supporting rods are vertical to the two supporting frames. The clamp provided by the invention has the beneficial effects that the rack for growing graphene in the double type manner provided by the invention is simple in structure, easy to process, relatively low in cost, easy to load samples and suitable for industrial production; and moreover, a metal catalyst in the growing process is free of cracks, so that the yield of graphene product is greatly improved, and the clamp is suitable for batch production of small-medium sized graphene samples.

Description

technical field [0001] The invention relates to the technical field of graphene preparation, in particular to a fixture for multiplying graphene preparation and a graphene preparation method. 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 samples, but the p...

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 INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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