Abstract

SnO 2 nanorod bundles were synthesized by hydrothermal method. Field-emission scanning electron microscopy and transmission electron microscopy images showed that the as-prepared flowerlike SnO 2 nanorod bundles consist of tetragonal nanorods with size readily tunable. Their electrochemical properties and application as anode for lithium-ion battery were evaluated by galvanostatic discharge–charge testing and cycle voltammetry. SnO 2 nanorod flowers possess improved discharge capacity of 694 mA h g − 1 up to 40th cycle at 0.1 C. ► The flowerlike SnO 2 nanorod bundles were synthesized by hydrothermal method. ► SnO 2 nanorod bundles with tunable size by controlling concentration of SnCl 4 . ► A probable formation mechanism of SnO 2 nanorod bundles has been proposed.

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