Table 2. Obtained EEC Model Values after Fitting to EIS Curves of CGCs.
| sample | time (h) | Rs (Ω × cm2) | Rp (Ω × cm2) | Yc (S × ŝa/cm2) | a | Rct (Ω × cm2) | Ydl (S × ŝa/cm2) | b | Χ2 |
|---|---|---|---|---|---|---|---|---|---|
| GC-1 | 1 | 7.618 | 13.53 | 2.858 | 0.692 | 36.86 | 11.34 | 0.823 | 289.2 × 10–6 |
| 4 | 4.606 | 24.43 | 2.146 | 0.681 | 28.53 | 15.243 | 0.820 | 162.6 × 10–6 | |
| 24 | 10.11 | 7.924 | 1.920 | 0.641 | 93.68 | 8.175 | 0.808 | 245.6 × 10–6 | |
| 48 | 7.021 | 9.958 | 1.272 | 0.701 | 82.75 | 7.925 | 0.745 | 557.9 × 10–6 | |
| GC-2 | 1 | 7.605 | 9.927 | 3.934 | 0.521 | 55.13 | 21.75 | 0.640 | 316.2 × 10–6 |
| 4 | 7.627 | 7.114 | 6.445 | 0.613 | 49.63 | 24.31 | 0.763 | 601.1 × 10–6 | |
| 24 | 6.058 | 9.557 | 2.997 | 0.664 | 29.21 | 13.19 | 0.772 | 99.20 × 10–6 | |
| 48 | 6.181 | 10.64 | 3.286 | 0.612 | 44.87 | 6.293 | 0.790 | 123.6 × 10–6 | |
| GC-3 | 1 | 2.334 | 5.798 | 2.868 | 0.692 | 32.36 | 6.05 | 0.701 | 441.1 × 10–6 |
| 4 | 3.479 | 3.177 | 4.928 | 0.628 | 26.67 | 8.36 | 0.877 | 147.1 × 10–6 | |
| 24 | 3.037 | 2.513 | 6.108 | 0.658 | 27.84 | 4.337 | 0.799 | 255.6 × 10–6 | |
| 48 | 3.490 | 3.895 | 4.744 | 0.635 | 30.61 | 2.422 | 0.767 | 348.3 × 10–6 | |
| GC-4 | 1 | 3.532 | 4.033 | 2.745 | 0.725 | 25.80 | 4.87 | 0.654 | 665.0 × 10–6 |
| 4 | 3.072 | 6.765 | 4.187 | 0.698 | 28.69 | 6.346 | 0.638 | 519.7 × 10–6 | |
| 24 | 3.142 | 5.891 | 3.776 | 0.815 | 23.31 | 5.895 | 0.784 | 185.9 × 10–6 | |
| 48 | 3.289 | 3.136 | 3.986 | 0.774 | 31.58 | 3.935 | 0.649 | 225.3 × 10–6 | |
| GC-5 | 1 | 1.907 | 5.991 | 9.386 | 0.631 | 24.45 | 5.02 | 0.796 | 677.6 × 10–6 |
| 4 | 2.635 | 6.712 | 8.452 | 0.763 | 45.14 | 7.010 | 0.754 | 189.0 × 10–6 | |
| 24 | 2.597 | 3.132 | 6.319 | 0.784 | 40.501 | 6.029 | 0.798 | 198.4 × 10–6 | |
| 48 | 2.898 | 2.535 | 5.274 | 0.788 | 32.45 | 1.321 | 0.684 | 203.1 × 10–6 |