Table 1 Summary findings of defects and electrochemistry in δ-MnO2 electrodes.
From: The critical role of point defects in improving the specific capacitance of δ-MnO2 nanosheets
Samples | AOS | [Mn3+] (%) | [Mn4+] (%) | [VMn] (%) | S.S.A. (m2 g−1) | Cp (F g−1) | R ct (Ω) | Na : Mn (fract.) |
|---|---|---|---|---|---|---|---|---|
Reassembled MnO2 - pH 2 | 3.24 | 76 | 24 | 26.5 | 120 | 306 | 3 | 0.28 |
Reassembled MnO2 - pH 4 | 3.36 | 64 | 36 | 19.9 | 144 | 209 | 15 | 0.19 |
Protonated MnO2 | 3.59 | 41 | 59 | 18.3 | 4.5 | 103 | 23 | 0.09 |
