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Carbon nanotube composite graphene film and preparation method thereof
The invention relates to the field of nano materials, in particular to a carbon nanotube composite graphene film and a preparation method thereof. According to the preparation method of the carbon nanotube composite graphene film provided by the invention, the carbon nanotube growth substrate nanometer aluminum oxide particles, the catalyst and the carbon source are simultaneously introduced into the interlayer of the graphene oxide film through a one-step method; the carbon nanotubes grow in situ in an oriented manner between graphene film layers by taking aluminum oxide as a substrate to form a multi-dimensional microstructure graphene composite film containing aluminum oxide particles, one-dimensional carbon nanotubes and two-dimensional graphene sheets, the aluminum oxide is uniformly dispersed, and the carbon nanotubes are oriented in the graphene composite film. A heat conduction channel in the thickness direction is provided through the carbon nanotubes oriented in the thickness direction, and the heat conduction performance in the thickness direction is improved. Tests show that the thermal conductivity in the thickness direction of the prepared carbon nanotube composite graphene film is improved by more than one time compared with that of a film prepared without adding nano aluminum oxide.
本发明涉及纳米材料领域，具体是一种碳纳米管复合石墨烯薄膜及其制备方法。本发明提供的碳纳米管复合石墨烯薄膜的制备方法，通过一步法将碳纳米管生长衬底纳米氧化铝颗粒、催化剂和碳源同时引入氧化石墨烯薄膜层间，在氧化石墨烯薄膜热还原的同时，碳纳米管以氧化铝为衬底在石墨烯薄膜层间原位定向生长，形成含氧化铝颗粒、一维碳纳米管和二维石墨烯片三种材料的多维微观结构石墨烯复合薄膜，所述氧化铝均匀分散，碳纳米管定向取向在其中，通过沿厚度方向取向的碳纳米管提供厚度方向的导热通道，提高了厚度方向的导热性能。试验表明，本发明制备得到的碳纳米管复合石墨烯薄膜的厚度方向热导率相比不加入纳米氧化铝制得的薄膜提升了一倍以上。
Carbon nanotube composite graphene film and preparation method thereof
The invention relates to the field of nano materials, in particular to a carbon nanotube composite graphene film and a preparation method thereof. According to the preparation method of the carbon nanotube composite graphene film provided by the invention, the carbon nanotube growth substrate nanometer aluminum oxide particles, the catalyst and the carbon source are simultaneously introduced into the interlayer of the graphene oxide film through a one-step method; the carbon nanotubes grow in situ in an oriented manner between graphene film layers by taking aluminum oxide as a substrate to form a multi-dimensional microstructure graphene composite film containing aluminum oxide particles, one-dimensional carbon nanotubes and two-dimensional graphene sheets, the aluminum oxide is uniformly dispersed, and the carbon nanotubes are oriented in the graphene composite film. A heat conduction channel in the thickness direction is provided through the carbon nanotubes oriented in the thickness direction, and the heat conduction performance in the thickness direction is improved. Tests show that the thermal conductivity in the thickness direction of the prepared carbon nanotube composite graphene film is improved by more than one time compared with that of a film prepared without adding nano aluminum oxide.
本发明涉及纳米材料领域，具体是一种碳纳米管复合石墨烯薄膜及其制备方法。本发明提供的碳纳米管复合石墨烯薄膜的制备方法，通过一步法将碳纳米管生长衬底纳米氧化铝颗粒、催化剂和碳源同时引入氧化石墨烯薄膜层间，在氧化石墨烯薄膜热还原的同时，碳纳米管以氧化铝为衬底在石墨烯薄膜层间原位定向生长，形成含氧化铝颗粒、一维碳纳米管和二维石墨烯片三种材料的多维微观结构石墨烯复合薄膜，所述氧化铝均匀分散，碳纳米管定向取向在其中，通过沿厚度方向取向的碳纳米管提供厚度方向的导热通道，提高了厚度方向的导热性能。试验表明，本发明制备得到的碳纳米管复合石墨烯薄膜的厚度方向热导率相比不加入纳米氧化铝制得的薄膜提升了一倍以上。
Carbon nanotube composite graphene film and preparation method thereof
一种碳纳米管复合石墨烯薄膜及其制备方法
TAO SIJUN (author) / SUN YUNBO (author) / ZHANG XUELE (author) / LIU JIALONG (author) / JIANG DAZHI (author)
2024-07-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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