Abstract
Porous SnO 2 nanoflakes with loose-packed structure were synthesized by calcination of SnS 2 precursors that were obtained through solvothermal method at low temperature. The as-obtained SnO 2 product had a three-dimensional porous structure with relatively high specific surface area. It was found that the SnO 2 nanoflakes inherited the morphology of precursor while numerous pores were formed after the annealing process. The combined techniques of X-ray diffraction, energy-dispersive spectrum, field emission scanning electron microscopy, and (high-resolution) transmission electron microscopy were used for characterization of the as-prepared SnO 2 product. Moreover, the porous SnO 2 nanoflakes with loose-packed structure could be used as gas sensors for detecting ethanol and acted as anode for lithium ion batteries. Our study shows that the as-prepared SnO 2 nanoflakes not only exhibit good response and reversibility to ethanol gas but also display enhanced Li-ion storage capability.
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