The effect of additives and impurities on the cobalt electrowinning process

Current efficiency and kinetics of cobalt electrodeposition in acid chloride solutions. Part I: The influence of current density, pH and temperature

“…4. Many workers have found an increase in current efficiency for cobalt with increasing pH both in chloride electrolytes [8][9][10] as well as in sulphate electrolytes [11][12][13]. Figure 4 shows that the current efficiency increased with increasing pH and with increasing current density.…”

Effects of SiC and Al2O3 particles on the electrodeposition of Zn, Co and ZnCo. I. Electrodeposition in the absence of SiC and Al2O3

“…is assumed by Matsushima et al [66], at pH = 3, and Grujicik and Pesic [64] at pH = 6. Regarding H 3 BO 3 , it is assumed it has no effect on this behavior since H 3 BO 3 is related to changes in the morphology of Co deposits [67][68][69]. From the work of Kleinert et al [70], the electrodeposition of Co shown in Fig.…”

Electrodeposition of cobalt from spent Li-ion battery cathodes by the electrochemistry quartz crystal microbalance technique

“…The production of metallic cobalt is accomplished predominantly via electrodeposition in an aqueous solution [6]. It has been suggested that cobalt electrodeposition at pH < 4.00 occurs together with a hydrogen detachment reaction [6][7][8][9][10][11][12].…”

“…It has been suggested that cobalt electrodeposition at pH < 4.00 occurs together with a hydrogen detachment reaction [6][7][8][9][10][11][12]. During this electrodeposition, a rich hydrogen phase can be adsorbed in the deposits, as represented by Eqs.…”