Table 2. Electrochemical Parameters for the Direct Electrochemistry of GOX on Different GOX/CNT-Modified GC Electrodes.
peak current (μA cm–2) |
peak potential (V) |
||||||
---|---|---|---|---|---|---|---|
electrode | anode (Ipa) | cathode (Ipc) | E° (V) | anode (Epa) | cathode (Epc) | peak separation (ΔEp, V) | ks (s–1) |
GOX/CNT-1 | 158.1 | –173.3 | –0.449 | –0.431 | –0.466 | 0.035 | 0.984 |
GOX/CNT-2 | 125.3 | –136.9 | –0.458 | –0.446 | –0.470 | 0.024 | 1.22 |
GOX/CNT-3 | 233.7 | –246.4 | –0.458 | –0.442 | –0.473 | 0.031 | 1.064 |
GOX/CNT-4 | 104.7 | –128.6 | –0.456 | –0.439 | –0.473 | 0.034 | 1.004 |