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Synthesis and characterization of iron-filled multi-walled nanotubes

机译：含铁多壁纳米管的合成与表征

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摘要

The growth of iron filled multiwalled carbon nanotubes (Fe-MWCNT) using chemical vapour deposition (CVD) has been widely studied. Considering the remarkable magnetic and structural properties of Fe-MWCNT, these materials have been applied in numerous areas. In particular their biomedical application has been explored, where Fe-MWCNT can be used in hyperthermia, acting as a local nano-heater at cellular level. Regarding this aim, the reproducible and highly purified ferromagnetically filled samples of carbon nanotubes are still required. There are several parameters during the synthesis process that influence the properties of the nanotubes. The most favourable temperature of the CNT growth is probably one of the most important issues and its optimisation is crucial. In the current study, the Fe-MWCNT were grown at different temperatures ranging from 650 ℃ to 1050 ℃. Additionally, a comparison between two different CVD systems and two carbon sources are also here presented. The Fe-MWCNT were characterised using diverse techniques regarding the evaluation of their morphology, filling ratio, and purity. Observations showed a strong influence of the growth temperature on the morphology and properties of the Fe-MWCNT. The samples characterisation was performed using Raman spectroscopy, thermogravimetric analysis (TGA), X ray diffraction (XRD), and transmission electron microscopy analysis (TEM).
机译：广泛研究了使用化学气相沉积（CVD）的铁填充多壁碳纳米管（Fe-MWCNT）的生长。考虑到Fe-MWCNT的卓越的磁性和结构特性，这些材料已在许多领域得到应用。特别地，已经探索了它们的生物医学应用，其中Fe-MWCNT可以用于热疗，在细胞水平上充当局部纳米加热器。关于该目的，仍然需要可再现且高度纯化的碳纳米管的铁磁填充样品。在合成过程中有几个参数会影响纳米管的性能。 CNT生长的最有利温度可能是最重要的问题之一，其优化至关重要。在当前的研究中，Fe-MWCNT在650℃至1050℃的不同温度下生长。此外，这里还介绍了两个不同的CVD系统和两个碳源之间的比较。 Fe-MWCNT使用多种技术对其形态，填充率和纯度进行评估。观察结果表明，生长温度对Fe-MWCNT的形貌和性能有很大影响。使用拉曼光谱，热重分析（TGA），X射线衍射（XRD）和透射电子显微镜分析（TEM）对样品进行表征。

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  • 来源
    《Materials Science-Poland》 |2011年第4期|p.299-304|共6页
  • 作者

    A. Jedrzejewska; S. Costa; K. Cendrowski; R. J. Kalenczuk; E. Mijowska;

  • 作者单位

    Centre of Knowledge Based Nanomaterials and Technologies, Institute of Chemical Engineering and Chemical Technology,West Pomeranian University of Technology, Szczecin, Poland;

    Centre of Knowledge Based Nanomaterials and Technologies, Institute of Chemical Engineering and Chemical Technology,West Pomeranian University of Technology, Szczecin, Poland;

    Centre of Knowledge Based Nanomaterials and Technologies, Institute of Chemical Engineering and Chemical Technology,West Pomeranian University of Technology, Szczecin, Poland;

    Centre of Knowledge Based Nanomaterials and Technologies, Institute of Chemical Engineering and Chemical Technology,West Pomeranian University of Technology, Szczecin, Poland;

    Centre of Knowledge Based Nanomaterials and Technologies, Institute of Chemical Engineering and Chemical Technology,West Pomeranian University of Technology, Szczecin, Poland;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    carbon nanotubes; iron filling; endohedral functionalization; TEM; raman spectroscopy;

    机译：碳纳米管;铁填充内膜功能化TEM;拉曼光谱;

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