Fig. 3: Electrochemical analysis of the MXene-knotted CNT composite electrodes in an organic mixed electrolyte (EMIM-TFSI: Li-TFSI = 1:1). | Nature Communications

Fig. 3: Electrochemical analysis of the MXene-knotted CNT composite electrodes in an organic mixed electrolyte (EMIM-TFSI: Li-TFSI = 1:1).

From: Maximizing ion accessibility in MXene-knotted carbon nanotube composite electrodes for high-rate electrochemical energy storage

Fig. 3

a Rate performance of the electrodes with different CNT contents from 0% (pure Ti3C2). b Capacitance of the electrodes as a function of CNT content at 10 mV s−1, 1 V s−1, and 10 V s−1. The error bars represent the standard deviation. c Electrochemical impedance spectroscopy (EIS) data for the different electrodes taken at 0 V versus open circuit voltage. The inset showed a magnified view of the high-frequency region. d Cyclic voltammograms at different scan rates, e plot of the anodic peak current versus the scan rate, and f long-term cycling performance and corresponding Coulombic efficiency at 100 mV s−1 for the 17% CNT electrode.

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