Cyclic voltammetry Electrodes 13 Scanning electron microscopy 13 Electrochemical electrodes 11 Electrochemical impedance spectroscopy 9 Electrodeposition 8 Electrolytes 8 Performance 7 Chlorine compounds 6 Electric discharges 6 Electrochemical sensors 5 Electrochemicals 5 Field emission microscopes 5 Fourier transform infrared spectroscopy 5 Graphene 5 Synthesised 5 Copper 4 Costs 4 Energy storage 4 Graphite 4 Graphite electrodes 4 Low-costs 4 Morphology 4 Nanocomposites 4 Specific capacitance 4 Supercapacitor 4 % reductions 3 Binary alloys 3 Capacitance 3 Carbon fibers 3