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By using a facile one-pot synthetic route, we designed a one-dimensional hybrid nanostructure by introducing small amounts of Au species (0.9 wt %) dispersed over the amorphous tin oxide overlayers uniformly supported on coaxial carbon nanotubes as electrode materials for application in lithium ion battery. The as-synthesized CNT@SnO2−Au nanocables were characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, elemental mapping, and X-ray photoelectron spectroscopy; such hybrid nanostructure markedly improves electrode performance, especially for the rate performance. The capacities of 467 and 392 mA h g−1 were obtained at rates of 3.6 A g−1 and 7.2 A g−1, respectively.
Chen et al. (Tue,) studied this question.