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Solid Single Phase Catalyst for Growth of Bundled or Dispersed MWCNT by CVD*
Xu Junminga1, Zhang Xiaobina, b2, Li Yua1, Tao Xinyonga1, Chen Feia1, Yang Xiaofanga1
1.Department ofMaterials Science and Engineering, Zhejiang University, Hangzhou 310027;2.State Key Laboratory ofSilicon Materials, Zhejiang University, Hangzhou 310027
Abstract:
Fe-Mo-Mg-O catalyst prepared by combustion method has great efficiency to growcarbon nanotubeswith CVD method. Through investigation of TEM, it is found that bundles of multi-wall carbon nanotubes (MWCNT) can be got when the catalyst is directly used to synthesize the product in CH4/H2atmosphere; however, the dispersed carbon nanotubes are obtained while the catalyst is reduced firstly in the H2before the synthesis. The morphology and structure of the catalysts before and after reduced are analyzed byTEMand XRD. The growthmechanism is suggeested forthe formation off these two kinds of carbon nanotubes.
Key words:  carbon nanotubes, bundle ofMWCNT, CVD method
FundProject:
附件
固体单相催化剂CVD法制备成束或分散MWCNT*
徐军明1, 张孝彬2, 李昱1, 陶新永1, 陈飞1, 杨晓芳1
1.浙江大学材料物理与微结构研究所,杭州 310027;2.浙江大学硅材料国家重点实验室,杭州 310027
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DOI:10.1088/1674-0068/16/6/432-434
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