Nanostructured SnS/carbon composite for supercapacitor

Abstract Net-like nanostructured SnS/carbon composite was prepared by heating mixture of SnS nanoparticles and resorcinol–formaldehyde sol at 650 °C. The morphology and structure of prepared SnS and SnS/carbon composite were studied by transmission electron microscopy (TEM) and X-ray diffraction (XRD). Electrochemical investigation indicated that SnS/carbon composite presented superior electrochemical performances than pristine SnS. SnS/carbon composite had better capacitive response in cyclic voltammetry and could deliver larger specific capacitance of 36.16 F/g in galvanostatical charge–discharge process. Net-like structure of SnS/carbon composite and good conductivity of carbon were considered to be responsible for its preferable electrochemical performances.