Table 2 Results of electrochemical characterization for ORR.
From: Noble metal-free bifunctional oxygen evolution and oxygen reduction acidic media electro-catalysts
Electro-catalyst | Current density for ORR at 0.9 V (vs RHE) (mA/cm2) | RΩ (Ω.cm2) | Rct (Ω.cm2) | Tafel slope (mV/dec) | |
|---|---|---|---|---|---|
in LCR | in HCR | ||||
Cu1.5Mn1.5O4 | 0.44 ± 0.0001 | 16.5 ± 0.001 | 31.5 ± 0.001 | 75 ± 0.001 | 130 ± 0.001 |
Cu1.5Mn1.5O4:5F | 0.7 ± 0.001 | 16.45 ± 0.001 | 28.55 ± 0.001 | 72 ± 0.001 | 127 ± 0.001 |
Cu1.5Mn1.5O4:10F | 1.15 ± 0.0001 | 16.4 ± 0.001 | 15.6 ± 0.001 | 68 ± 0.001 | 123 ± 0.001 |
Cu1.5Mn1.5O4:15F | 0.35 ± 0.001 | 16.38 ± 0.001 | 41.62 ± 0.001 | 79 ± 0.001 | 141 ± 0.001 |
Pt/C | 1.26 ± 0.0001 | 16.39 ± 0.001 | 9.2 ± 0.001 | – | – |
