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Preparation of Fe-filled carbon nanotubes by catalytic decomposition of cyclohexane

机译：环己烷催化分解制备铁填充碳纳米管

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Carbon nanotubes were formed in situ during the reduction of Fe_2O_3 to Fe by a gas mixture of N_2 (200 seem), H_2 (50 sccm), and cyclohexane (carried by H_2) at 750 deg C. Transmission electron microscopy (TEM) investigation showed that most of the formed nanotubes were filled with metal nanoparticles or nanorods. Some nanotubes were even inserted with long continuous nanowires more than several hundred nanometer in length. High-resolution TEM (HRTEM) and electronic energy loss spectrum (EELS) of the filled nanotubes confirmed the presence of Fe inside the nanotubes. Based on the experimental results, a possible growth mechanism of the Fe-filled nantotubes was proposed.
机译：N_2（200 sccm），H_2（50 sccm）和环己烷（H_2携带）在750℃下将Fe_2O_3还原为Fe的过程中原位形成碳纳米管。透射电子显微镜（TEM）研究表明大多数形成的纳米管都充满了金属纳米颗粒或纳米棒。一些纳米管甚至插入了长度超过几百纳米的长连续纳米线。填充纳米管的高分辨率TEM（HRTEM）和电子能量损失谱（EELS）证实了纳米管内部存在Fe。根据实验结果，提出了铁填充纳米管的可能生长机理。

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