Fitting results for the EIS measurements of AA2024 performed in 3.5% NaCl with different additives.
Sample | R s [Ω cm2] | CPEox | R 1 [Ω cm2] | CPEdl | R ct [kΩ cm2] | R 3 [Ω cm2] | L [kH cm−2] | ||
---|---|---|---|---|---|---|---|---|---|
Y [μΩ−1 cm−2 sn] | n | Y [μΩ−1 cm−2 sn] | n | ||||||
Blank | 5.2 | 1362.1 | 0.87 | 185.1 | 86.3 | 0.90 | 0.26 | — | — |
Melamine | 7.4 | 113.4 | 0.89 | 192.3 | 9.9 | 0.93 | 0.42 | — | — |
Ce | 8.1 | 194.5 | 0.91 | 128.6 | 6.4 | 0.94 | 2.11 | 241.3 | 17.6 |
CMCP | 8.9 | 121.5 | 0.93 | 201.5 | 5.2 | 0.95 | 2.58 | 521.1 | 22.7 |