Zn electrodeposition in the presence of surfactants

Electrochemical Reactions of Sodium 2-Ethylhexyl Sulfate Salt

“…The process of zinc electroreduction at electrode materials such as Pt, Pd, Au, and steel is characterized by underpotential deposition (UPD) and bulk deposition [11][12][13][14]. The UPD process at steel surface starts at the potential of −0.85 V vs. saturated calomel electrode (SCE), and the maximum current is reached at −1.05 V vs. SCE [13]. Simultaneously, hydrogen evolution takes place [13,14].…”

“…Opposite results were obtained in the presence of another anionic alkyl surfactant such as sodium dodecyl sulfate (SDS) [3,4], for which the authors proved a negative shift with its addition. The process of zinc electroreduction at electrode materials such as Pt, Pd, Au, and steel is characterized by underpotential deposition (UPD) and bulk deposition [11][12][13][14]. The UPD process at steel surface starts at the potential of −0.85 V vs. saturated calomel electrode (SCE), and the maximum current is reached at −1.05 V vs. SCE [13].…”

“…Simultaneously, hydrogen evolution takes place [13,14]. The effect of cationic (cetyltrimethylammonium bromide, CTAB), anionic (SDS), and non-ionic (N-dodecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate, Triton X-100) surfactants on Zn electrodeposition was investigated by Gomes and da Silva Pereira [13]. They found a distinct effect of CTAB and Triton X-100 addition on the reaction of zinc bulk deposition whereas the presence of SDS does not cause significant changes.…”

“…The UPD process at steel surface starts at the potential of −0.85 V vs. saturated calomel electrode (SCE), and the maximum current is reached at −1.05 V vs. SCE [13]. Simultaneously, hydrogen evolution takes place [13,14]. The effect of cationic (cetyltrimethylammonium bromide, CTAB), anionic (SDS), and non-ionic (N-dodecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate, Triton X-100) surfactants on Zn electrodeposition was investigated by Gomes and da Silva Pereira [13].…”

Electrodeposition of Zn-Mn alloys from recycling battery leach solutions in the presence of amines

“…A large set of additives has been studied to be used in different conditions and to achieve different goals. Surface active additives, such as polyacrylamines, thiourea, benzylideneacetone and coumarin [19][20][21][22][23][24] have been used to control the shape and size of deposited crystals to achieve smooth and shiny deposit layers. These additives act by adsorption on substrate surface, interfering with the charge transfer process and with the electrostatic interactions between charged species at the surface.…”