Table 1. Physical–Chemical Properties of CNFs with Different Dimensions and Electrochemistry of [Ru(NH3)6]3+ in 1 M KCl on These Electrodes at 100 mV/s v.
| sample | length (nm) | diameter (nm) | pseudocapacitance (μF/cm2) | potential window (PBS) | relative surface areaa | ΔEp (mV) | Ipa (μA) | Ipa/Ipc | k0 (cm/s) |
|---|---|---|---|---|---|---|---|---|---|
| CNF-30mins | 2684 ± 436 | 64 ± 15 | 773 ± 112 | 1.16 ± 0.03 | ∼25× | 59 ± 3 | 13 ± 1 | 0.86 ± 0.03 | 0.214 ± 0.056 |
| CNF-10mins | 789 ± 117 | 96 ± 22 | 243 ± 69 | 1.32 ± 0.07 | ∼6× | 61 ± 3 | 12 ± 1 | 0.90 ± 0.04 | 0.157 ± 0.070 |
| CNF-5mins | 600 ± 132 | 72 ± 15 | 312 ± 44 | 1.37 ± 0.02 | ∼6× | 61 ± 2 | 11 ± 0 | 0.92 ± 0.05 | 0.153 ± 0.046 |
| CNF-1min | 100 ± 18 | 92 ± 19 | 85 ± 12 | 1.46 ± 0.01 | 1× | 62 ± 6 | 12 ± 1 | 0.91 ± 0.01 | 0.140 ± 0.093 |
With respect to CNF-1min.