With the CV method, the region of scanned potentials was selected depending on the pH of the electrolyte: for pH 1 from 0.65 V to 2.1 V, for pH 2 from 0.4 V to 1.7 V, and for pH 3.5 from 0.3 V to 1.4 V. The scan rate was 50 mV/s. With the CA method, the applied potential also varied with pH: for pH 1 -2.0 V, for pH 2 -1.7 V, and for pH 3.5 -1.4 V. The deposition time was 200 s.