Research Article
Sea Urchin-Like MnO2/Biomass Carbon Composite Electrode Material for High-Performance Supercapacitors
Figure 3
Scanning (a) and elemental analysis (b) of synthetic biomass carbon BC, the scale bar is 20 μm; the constant current charge-discharge curve of BC material (c); CV curve (d); impedance cardiography, and the inset is the simulated equivalent circuit diagram (e); cyclic performance (f).
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