Figure 7. (a) CVs of MnO2/PPy/MnO2 TNTAs at different scan rates; (b) Csp of (1) MnO2/PPy/MnO2 TNTAs, (2) MnO2 NTAs, and (3) PPy NTAs as a function of cycle number at 10 mV/s; (c) Cycling stability at progressively varied scan rates; (d) Ragone plot (power density vs energy density) of MnO2/PPy/MnO2 TNTAs; (e) The NTA architectures, triple layered structures, and high conductivity in electrodes provide ion and electron “highways” for extremely rapid charge/discharge processes.
