Structural, optical, thermal and electrochemical analysis of annealed SnO2 –C nanocomposite

Abstract In this present work, Tin Oxide-Carbon (SnO 2 –C) nanocomposite (NCs) was synthesized via annealing method using glucose and SnCl 2 as precursors. As-prepared SnO 2 –C NCs were investigated by X-ray powder diffraction (XRD), Scanning Electron Microscopy (SEM), Energy dispersive X-ray (EDX) diffraction, Thermo-gravimetric analysis (TGA) and UV–visible spectral analyses. The electrochemical galvanostatic charge/discharge test shows that SnO 2 –C NCs possesses excellent electrochemical performance and enhanced cycling life. It exhibits a capacity of 180 mAh/g at the current density of 100 mAh/g and maintains the same capacity up to150 cycles. The observed efficient electrochemical property should have originated from the nanostructured carbon present in SnO 2 –C NCs, which in turn could have conferred the ability to accommodate the volume changes and prevented changes in Sn particle size during the charge/discharge process. It provides effective channels for lithium ion transport.