Fig. 4: Electrochemical data for the HT-MCNF and RuOx-MCNF electrodes. | NPG Asia Materials

Fig. 4: Electrochemical data for the HT-MCNF and RuOx-MCNF electrodes.

From: Ti3C2Tx MXene as a growth template for amorphous RuOx in carbon nanofiber-based flexible electrodes for enhanced pseudocapacitive energy storage

Fig. 4: Electrochemical data for the HT-MCNF and RuOx-MCNF electrodes.

a Cyclic voltammetry (CV) curves measured at scan rates of (a) 2 and (b) 300 mV/s. c Variations in the gravimetric capacitance as a function of the scan rate. d Nyquist plots for all electrodes. e Cycling stability of the R32-MCNF electrode during 10,000 CV tests. f–i Charge-storage mechanism of RuOx-MCNF electrodes for capacitive contribution analysis. f b-Values of the R32-MCNF electrode at various voltages. The inset of (f) shows the current response as a function of scan rate at 0.4 V. g Contribution ratio of the capacitance of the R32-MCNF electrode at different scan rates. h Capacitive contribution to charge storage at a scan rate of 20 mV/s with CV curves for the R32-MCNF electrode. i b-values and current responses of all electrodes.

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