Co2SnO4/activated carbon composite electrode for supercapacitor

摘要: Abstract A new kind of Co 2 SnO 4 -based electrode materials for supercapacitor was synthesized by co-precipitation method. The microstructure and surface morphology were characterized X-ray diffraction scanning electron microscopy, respectively. Cyclic voltammetry, chronopotentiometry electrochemical impedance spectroscopy employed the determination specific capacitance equivalent series resistance /activated carbon composite in KCl solution. It shown that with 25 wt% had excellent up to 285.3 F g − 1 at current density 5 mA cm . In addition, exhibited long-term stability and, after 1000 cycles, 70.6% initial retained. Regarding low cost, easy preparation, steady performance environment friendliness, could have potentially promising application supercapacitor.