Fig. 3From: Reducing and Uniforming the Co3 O 4 Particle Size by Sulfonated Graphenal Polymers for Electrochemical Applications a CV curves at a scan rate of 40 mV/s for the Co3O4 and Co3O4/SGP hybrid electrodes. The mass of activate materials was 5 mg. For a comparison, the CV curves for SGP and CNT (mass 0.5 mg) were provided, with a magnification factor of 10. b GCD behaviors at a current density of 2 A/g. c EIS spectra measured at a frequency range of 100 kHz to 0.01 HzBack to article page