Figure 7.

Nyquist plots and frequency dependence of capacitance retention of the electrodoes. (a) Nyquist plots and (b) frequency dependence of capacitance retention of the CNT, pure MnO2, and MnO2/CNT nanocomposite electrodes.

Xia et al. Nanoscale Research Letters 2012 7:33   doi:10.1186/1556-276X-7-33
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