A Facile Large-Scale Synthesis of Porous SnO2 by Bronze for Superior Lithium Storage and Gas Sensing Properties Through a Wet Chemical Reaction Strategy

A facile approach to prepare porous SnO 2 and SnO 2 /C composite with Cu-Sn alloy as raw material by wet chemical reaction strategy has been developed. The prepared porous SnO 2 and its carbon composite showed homogeneous mesoporous structure and high surface area, displayed superior rate performance and high reversible capacity of 625 mAh g −1 and 1185 mAh g −1 over 800 cycles at 0.4 A g −1 , respectively. Compared with commercial SnO 2 , porous SnO 2 sensor presented higher response, faster response/recovery capability, good selectivity and repeatability to ethanol at 180°C.