Chronoamperogram plots and the corresponding variations of M/z as functions of time are shown in Fig. 3. In this case, the potentiostatic electrodeposition of cobalt in a pH 5.40 solution, with −0.90V applied potential, presented a similar behavior in comparison with potentiodynamic electrodeposition. M/z values for deposition in this pH 5.40 solution tended towards a value of 33.00 gmol−1, which corresponds to the cobalt direct electrodeposition mechanism (Eq. (1)). For electrodeposition in a
pH 2.70 solution, M/z values were already near 10.00 gmol−1 at the initial deposition stage.