Table 1 Cyclic voltammetry data of all the electrodes in 5Â mM K3(Fe(CN)6/K4(Fe(CN)6 made in 0.1Â M of PBS (pH 7)
Working electrode | Ipa (μA) | Ipc (μA) | Ipa/Ipc | Epa (V) | Epc (V) | ΔEp (V) | E° (V) | Sc (F/g) |
|---|---|---|---|---|---|---|---|---|
Bare GCE | 25.0 | − 30.0 | − 0.83 | 0.40 | 0.01 | 0.39 | 0.20 | 0.17 |
Pc/GCE | 21.5 | − 25.9 | − 0.83 | 0.26 | 0.01 | 0.25 | 0.13 | 0.26 |
Ni/GCE | 35.6 | − 41.3 | − 0.86 | 0.31 | 0.13 | 0.18 | 0.09 | 0.31 |
fMWCNTs/GCE | 58.0 | − 67.1 | − 0.87 | 0.29 | 0.16 | 0.13 | 0.07 | 0.63 |
NiPcMWCNTs/GCE | 457.0 | − 482.0 | − 0.95 | 0.31 | 0.13 | 0.18 | 0.09 | 6.80 |