Table 2 Comparison of ionic current rectification factor in K 3 Fe(CN) 6 solution
Concentration of K3Fe (CN)6 | Rectification factor | |||
---|---|---|---|---|
(mM) | As-made | Single-step electrooxidation of amine | Electrochemical grafting of diazonium and coupling of dye | Chemical grafting of diazonium and coupling of dye |
10 | 3.9 ± 0.8 | 14.4 ± 0.6 | 2.9 ± 0.2 | 4.0 ± 0.4 |
50 | 4.4 ± 0.9 | 9.8 ± 0.3 | 2.9 ± 0.2 | 3.3 ± 0.07 |
100 | 3.4 ± 0.1 | 8.0 ± 0.4 | 3.2 ± 0.3 | 3.6 ± 0.2 |