Antimony-doped tin oxide nanotubes for high capacity lithium storage

Antimony-doped tin oxide (ATO) nanotubes were synthesized by a modified template method in this work. The nanotubes, which were similar to 200 nm in diameter and 10-20 nm in wall thickness, were composed of a large number of 5-15 nm ATO nanocrystals. The doping level of Sb in the ATO could be varied by the experimental conditions. ATO nanotubes with Sn:Sb ratios of 9:1 or 5:1, in particular, were good reversible Li storage materials, showing high capacities and good cyclability at both common and high rates of charge and discharge. (C) 2011 Elsevier B.V. All rights reserved.