A kind of temperature-varying zone liquid bed Direct precipitation grows the preparation method of graphene

A kind of temperature-varying zone liquid bed Direct precipitation grows the preparation method of graphene

  • CN 107,119,316 A
  • Filed: 04/13/2017
  • Published: 09/01/2017
  • Est. Priority Date: 04/13/2017
  • Status: Active Application
First Claim
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1. a kind of temperature-varying zone liquid bed Direct precipitation grows the preparation method of graphene, it is technically characterized in that:

  • In protective gasUnder, the solvent of temperature-varying zone liquid bed is molten state medium, and solute is atomic carbon;

    The molten state medium cracks temperature by boiling point higher than carbonDegree and fusing point be less than target substrate fusing point one or more material compositions;

    During work, molten state is heated to;

    Alternating temperature is distinguished into phaseTo high-temperature region, transition temperature-varying zone and relatively low warm area;

    Relatively-high temperature area molten state media operation temperature is higher than carbon cracking temperature, carbonSource is activated cracking in relatively-high temperature area, and the atomic carbon formed after cracking is dissolved in molten state medium, and original is dissolved with by above-mentionedThe molten state medium of sub- carbon cools by transition temperature-varying zone and is transported to relatively low warm area;

    In relatively low warm area, molten state mediumOperating temperature is slightly above or equal to the supersaturated Precipitation Temperature of atomic carbon;

    Target substrate is cooled to supercooled state;

    Target substrate float orLiquid bed is immersed in, the supersaturated indigenous graphite alkene film of atomic carbon of dissolving is deposited directly in target substrate.

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