Abstract
Hierarchical flower-like SnO2 nanomicrostructure has been synthesized via a solvent-induced and surfactant assisted self-assembly technique at ambient temperature followed by a suitable thermal treatment. A possible growth mechanism governing the formation of such a nanomicrostructure is discussed. The applications in gas sensors for detecting CO and H2 reveal that the obtained SnO2 material exhibits a remarkable sensitivity and extremely low detecting limit (5 ppm), as well as good reproducibility and short response/recovery times, which benefit a lot from its unique flower-like nanomicrostructure consisting of three-dimensional interconnected SnO2 nanoparticles and nanopores. In order to use the present SnO2 nanomicrostructure in lithium-ion batteries, carbon coatings are introduced to the surface of them by pyrolysis of glucose under hydrothermal conditions. Both SnO2−C and Sn−C nanocomposites are obtained by taking thermal treatment of the precursors at different temperatures. The conversion processes...
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