Open Access
Table 3
Tafel parameters of the investigated electrodes after 30 min immersion in 0.5 M Na2SO4 solution.
| Electrode | E corr/V | i corr/μA cm−2 | Rp/kΩ ∙ cm2 | v cor/μm Y−1 | IE/% |
|---|---|---|---|---|---|
| Bare OL | –0.916 | 24.08 | 1.53 | 104.1 | – |
| ZnTa2O6 | –0.908 | 10.53 | 1.98 | 45.54 | 56.27 |
| ZnNb2O6 | –0.922 | 15.17 | 1.31 | 65.59 | 37 |
| MgTa2O6 | –0.921 | 11.73 | 1.93 | 50.74 | 51.28 |
| MgNb2O6 | –0.910 | 9.83 | 2.36 | 42.52 | 59.17 |
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