Research Article
Application of Electrochemical Techniques on Study of Effect of Nano-ZnO in Conductive Polyaniline Containing Zinc-Rich Primer
Table 1
EIS fitting parameters of PAni-ZRP and PAni-ZnO-ZRP.
(a) Day 1 fitted using EEC shown in Figure 9(a) |
| | Coating system | (S⋅⋅cm−2) | | (Ω⋅cm2) | (S⋅⋅cm−2) | | (Ω⋅cm2) |
| | PAni-ZRP | 7.91 × 10−7 | 0.62 | 8.74 × 104 | 7.84 × 10−6 | 0.49 | 1.42 × 105 | | PAni-ZnO-ZRP | 7.28 × 10−8 | 0.74 | 1.07 × 105 | 1.09 × 10−6 | 0.51 | 6.23 × 105 |
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(b) Day 2 fitted using EEC shown in Figure 9(b) |
| | Coating system | (S⋅⋅cm−2) | | (Ω⋅cm2) | (S⋅⋅cm−2) | | (Ω⋅cm2) | (S⋅⋅cm−2) | | (Ω⋅cm2) |
| | PAni-ZRP | 1.27 × 10−7 | 0.77 | 1051 | 1.82 × 10−6 | 0.43 | 1.56 × 105 | 1.34 × 10−5 | 0.58 | 2.18 × 105 | | PAni-ZnO-ZRP | 1.60 × 10−8 | 0.75 | 7789 | 2.02 × 10−8 | 0.48 | 4.29 × 105 | 4.57 × 10−5 | 0.72 | 2.35 × 105 |
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(c) Days 20, 60, and 120 fitted using EEC shown in Figure 9(c) |
| | Time (day) | (S⋅⋅cm−2) | | (Ω⋅cm2) | (S⋅⋅cm−2) | | (Ω⋅cm2) | (Ω⋅cm2⋅s−1/2) |
| | PAni-ZRP | | Day 20 | 5.20 × 10−7 | 0.71 | 152.6 | 6.41 × 10−5 | 0.32 | 5441 | 12057 | | Day 60 | 2.78 × 10−6 | 0.59 | 1679 | 2.66 × 10−6 | 0.87 | 546.6 | 29798 | | Day 120 | 9.79 × 10−7 | 0.65 | 1186 | 5.54 × 10−5 | 0.35 | 5260 | 76884 |
| | PAni-ZnO-ZRP | | Day 20 | 3.69 × 10−6 | 0.59 | 280 | 8.24 × 10−5 | 0.39 | 878 | 10402 | | Day 60 | 5.70 × 10−6 | 0.56 | 390.2 | 1.2 × 10−4 | 0.42 | 895 | 10475 | | Day 120 | 4.41 × 10−7 | 0.70 | 319.6 | 1.20 × 10−4 | 0.20 | 6680 | 41375 |
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