Figure 6

Comparisons of (a) CV curves and (b) specific capacitances of the hybrid electrodes prepared with urea plus thiourea at different heating processes (Ni:Mn: 0.7:0.35). Comparisons of (c) CV curves and (d) specific capacitances of the hybrid electrodes prepared with urea plus thiourea at different feeding mole ratios of Ni:Mn (Heating process: 90 oC 4 h + 110 oC 10 h).