Awasthi Kalpana, Singh A K, Srivastava O N
Department of Physics, Banaras Hindu University, Varanasi-221005, India.
J Nanosci Nanotechnol. 2002 Feb;2(1):67-71. doi: 10.1166/jnn.2002.078.
Lanthanum carbide nanotubes have been synthesized by d.c. arc evaporation (approximately 20-30 V, approximately 200 Amp) of lanthanum metal (90 wt.%)-loaded graphite rod in a helium atmosphere (665 mbar). To explore the possibility of formation of lanthanum carbide nanotubes, the experiments were carried out with lanthanum metal in different concentrations (i.e., 30, 50, 70, and 90 wt.%) in the graphite rod. The as-synthesized samples were characterized by transmission electron microscopy and X-ray diffractometry. Lanthanum carbide nanotubes (LCNTs) with a diameter of approximately 65 to 95 nm and a length of approximately 0.2 to 1.5 microns were obtained in this study.
通过在氦气气氛（665毫巴）中对负载有镧金属（90重量%）的石墨棒进行直流电弧蒸发（约20 - 30伏，约200安培）来合成碳化镧纳米管。为了探究形成碳化镧纳米管的可能性，使用了石墨棒中不同浓度（即30、50、70和90重量%）的镧金属进行实验。通过透射电子显微镜和X射线衍射对合成后的样品进行了表征。在本研究中获得了直径约为65至95纳米、长度约为0.2至1.5微米的碳化镧纳米管（LCNTs）。
