钯催化剂下碳纳米管的可控合成

2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2006-01-01 DOI:10.1109/NEMS.2006.334840

X. Tao, Xiaobin Zhang, Junlian Wang, Jipeng Cheng, Fu Liu, Junhang Luo, Zhiqiang Luo

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引用次数: 1

摘要

采用化学气相沉积法在多孔SiO2负载的钯纳米颗粒上制备了高收率的多壁碳纳米管。HRTEM结果表明，碳纳米管具有新颖的圆锥形内部结构。通过改变催化剂中钯的含量，我们得到了不同直径分布的钯纳米颗粒。结果表明，锥体的顶点角、外径和长度与钯纳米颗粒的直径有关。由于开放石墨层的存在，这些新型碳纳米管在储能、场发射和复合材料方面具有令人着迷的潜力

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Controllable Synthesis of CNTs Using Pd Catalyst

High yields of multi-walled carbon nanotubes are synthesized by chemical vapor deposition of acetylene on palladium nanoparticles supported on porous SiO2. HRTEM results reveal that the carbon nanotubes have novel conical inner structure. By changing the content of palladium in the catalyst, we obtained palladium nanoparticles with different diameter distribution. It was found that the apex angles of cones, the outer diameter and the length have a dependence on the diameter of the palladium nanoparticles. Due to the presence of open graphite layers, these novel carbon nanotubes have fascinating potential for energy storage, filed emission and composites

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2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems

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