Synthesis and Characterization of Lanthanum Carbide Nanotubes
Abstract:Lanthanum carbide nanotubes have been synthesized by d.c. arc evaporation (~20-30 V, ~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 ~65 to 95 nm and a length of 0.2 to 1.5 m were obtained in this study.
Document Type: Research Article
Affiliations: Department of Physics, Banaras Hindu University, Varanasi-221005, India
Publication date: February 1, 2002
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