Kinetic parameters of the HER for samples Mo5Na, Mo6Na after etching, and Mo5Na-el, Mo6Na-el after 4 days electrolysis, calculated from voltammograms, in the range 100–150 mA cm−2, recorded in 1 M NaOH solution at 293 K.
| Samples (electrodes) | Tafel slope, b (V dec−1) | The exchange current density, i0 (A cm−2) | Transfer coefficient, α |
|---|---|---|---|
| Mo5Na | −1,03 | 1.53 × 10−2 | 0.056 |
| Mo5Na-el | −0.865 | 1.32 × 10−2 | 0.067 |
| Ni electrode | −0.871 | 9.66 × 10−3 | 0.066 |
| Mo6Na | −0.626 | 8.55 × 10−3 | 0.092 |
| Mo6Na-el | −0.487 | 5.28 × 10−3 | 0.119 |