“…Besides, the lower Warburg impedance of the MMO/C electrode, at the lower frequency part, shows more excellent hydroxide kinetics for diffusion on the surface of the active material. 47,62,63 Altogether, the EIS results imply that the MMO/C material contains a good electrostatic connection of the MMO particles and MWCNTs and shows higher ion exchange, electron transfer, and ionic diffusion kinetics at the electrode/electrolyte interface than those of the MMO due to the presence of MWCNTs.…”