Figure 7
From: Porous Iron Oxide Ribbons Grown on Graphene for High-Performance Lithium Storage
Electrochemical impedance spectra of the iron oxide ribbon electrodes.
Comparison of the Nyquist plots of FeO-250, FeO-300 and FeO-350 electrodes obtained by applying a sine wave with amplitude of 5.0 mV over the frequency range from 100 kHz to 0.01 Hz.
