Abstract
One-dimensional (1D) SnO 2 nanowires, coated by in situ formed amorphous carbon nanotubes (a-CNTs) with a mean diameter of ca. 60 nm, were synthesized by annealing the anodic alumina oxide (AAO) filled with a sol of SnO 2. X-ray diffraction (XRD) and selected area electron diffraction (SAED) patterns revealed that the prepared SnO 2 nanowires exist in polycrystalline rutile structure. The coating of carbon nanotubes has some defects on the wall after the internal SnO 2 nanoparticles were removed. The 1D SnO 2 nanowires present a reversible capacity of 441 mAh/g and an excellent cycling performance as an anode material for lithium ion batteries. This suggests that 1D nanostructured materials have great promise for practical application.
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