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首页> 外文期刊>Journal of nano research >Building up multiwall carbon nanotubes nanostructures inside millimetric channels of ceramic monoliths
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Building up multiwall carbon nanotubes nanostructures inside millimetric channels of ceramic monoliths

机译：在陶瓷整料的毫米波通道内建立多壁碳纳米管纳米结构

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摘要

Multiwall carbon nanotubes were grown inside the millimetric channels of commercial ceramic materials, cordierite monoliths, using a modified catalytic chemical vapor deposition method. Fe(CO)_5 liquid catalyst precursor was introduced in gas phase at the same time as the acetylene carbon source to allow a more uniform distribution of carbon nanotubes on the substrate surface. Different techniques were used for the characterization of the obtained multiwall carbon nanotubes such as scanning and transmission electron microscopies, N_2 adsorption isotherms, Raman spectroscopy and thermogravimetric analysis. The results show that the surface of the ceramic monolith is progressively covered with multiwall carbon nanotubes reaching total coverage for longer times under reaction. The carbon nanotubes were built up with a tree-like morphology. So, firstly larger carbon nanotubes are formed as the tree trunks on the cordierite surface, followed by the growing on them of narrower and longer nanotubes suggesting the tree branches.
机译：使用改良的催化化学气相沉积方法，在商用陶瓷材料（堇青石整料）的毫米通道内生长了多壁碳纳米管。 Fe（CO）_5液态催化剂前体与乙炔碳源同时引入气相中，以使碳纳米管在基材表面上分布更均匀。使用不同的技术表征获得的多壁碳纳米管，例如扫描和透射电子显微镜，N_2吸附等温线，拉曼光谱和热重分析。结果表明，陶瓷单块的表面逐渐被多壁碳纳米管覆盖，在反应下，碳纳米管的总覆盖时间更长。碳纳米管具有树状形态。因此，首先在堇青石表面上形成较大的碳纳米管作为树干，然后在其上生长较窄和较长的纳米管，暗示了树枝。

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  • 来源
    《Journal of nano research》 |2012年第2012期|p.271-279|共9页
  • 作者

    M. Perez-Cadenas; V. Munoz-Andres; I. Rodriguez-Ramos; A. Maroto-Valiente; A. Guerrero-Ruiz;

  • 作者单位

    Departamento de Quimica Inorganica y Tecnica. Facultad de Ciencias. UNED. Paseo Senda del Rey N° 9, 28040 Madrid (Spain);

    Departamento de Quimica Inorganica y Tecnica. Facultad de Ciencias. UNED. Paseo Senda del Rey N° 9, 28040 Madrid (Spain),Unidad Asociada UNED-ICP(CSIC) Grupo de Diseno y Aplicacion de Catalizadores Heterogeneos;

    Instituto de Catalisis y Petrol., CSIC, Campus Cantoblanco, 28044 Madrid (Spain),Unidad Asociada UNED-ICP(CSIC) Grupo de Diseno y Aplicacion de Catalizadores Heterogeneos;

    Departamento de Quimica Inorganica y Tecnica. Facultad de Ciencias. UNED. Paseo Senda del Rey N° 9, 28040 Madrid (Spain);

    Departamento de Quimica Inorganica y Tecnica. Facultad de Ciencias. UNED. Paseo Senda del Rey N° 9, 28040 Madrid (Spain),Unidad Asociada UNED-ICP(CSIC) Grupo de Diseno y Aplicacion de Catalizadores Heterogeneos;

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  • 正文语种 eng
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  • 关键词

    carbon nanotubes; cordierite monolith; pyrolysis;

    机译：碳纳米管;堇青石整体热解;

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