The electrochemical parameters extracted from the fitting of the EIS results of MOF/epoxy sample after immersion in a corrosive 3.5% NaCl solution at various immersion times.
Sample | Time [day] | R s [Ω cm2] | Q coat [10−7 F cm2 sn−1] | n 1 | R coat [104 Ω cm2] | Q dl [10−9 F cm2 sn−1] | n 2 | R ct [105 Ω cm2] |
---|---|---|---|---|---|---|---|---|
MOF/epoxy | 3 | 3.2 | 2.08 | 0.75 | 7.12 | 0.94 | 0.74 | 11.81 |
6 | 4.9 | 3.92 | 0.79 | 2.60 | 1.62 | 1.00 | 5.22 | |
10 | 2.3 | 8.78 | 0.85 | 1.48 | 1.86 | 0.95 | 2.74 | |
17 | 1.8 | 11.25 | 0.88 | 1.25 | 2.07 | 0.93 | 1.74 | |
25 | 1.3 | 18.03 | 0.89 | 0.54 | 4.01 | 0.88 | 1.85 | |
32 | 1.3 | 77.16 | 0.76 | 0.64 | 69.38 | 0.79 | 1.66 | |
39 | 2.4 | 89.15 | 0.77 | 0.65 | 91.72 | 0.76 | 1.21 | |
46 | 3.1 | 90.48 | 0.72 | 0.61 | 48.41 | 0.45 | 2.08 | |
51 | 1.8 | 63.28 | 0.97 | 1.24 | 44.51 | 0.36 | 2.97 | |
60 | 2.1 | 79.92 | 0.85 | 1.03 | 69.92 | 0.52 | 1.91 |