Voltammetric and morphological characterization of zinc electrodeposition from acid electrolytes containing boric–polyalcohol complexes

Oliveira, E. M. de; Carlos, I.A.

doi:10.1007/s10800-008-9534-2

Cited by 27 publications

(22 citation statements)

References 25 publications

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“…2e -= H 2 ? 2OH -), and the H 2 gas bubbles are observed visually at the cathode surface [32][33][34]. In this peak region, the formation of ZnH, ZnO, and ZnOH layers, which occurs during zinc deposition from acid sulfate bath, was reported in the literature [19].…”

Section: Voltammetric Studies In the Absence Of Additivesmentioning

confidence: 73%

Synergistic effect of additives on bright nanocrystalline zinc electrodeposition

et al. 2010

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The influence of additives like cetyltrimethylammonium bromide (CTAB) and Ethyl vanillin (EV) on zinc electrodeposition from acid sulfate bath was systematically investigated by scanning electron microscopy, X-ray diffraction, and voltammetric techniques. The result shows the existence of interaction between CTAB and EV. They exhibited synergistic effect to produce bright nanocrystalline zinc coating on steel surface. The combined effects of these two compounds on deposition overpotential, hydrogen evolution, zinc ion diffusion, and surface coverage were discussed. The morphological and orientational changes occurred in electrodeposit were presented. Also the nucleation mechanism exhibited by zinc during electrodeposition in the presence of additive was examined.

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Section: Voltammetric Studies In the Absence Of Additivesmentioning

confidence: 73%

Synergistic effect of additives on bright nanocrystalline zinc electrodeposition

et al. 2010

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“…Also, polyalcohols in the alkaline plating bath inhibit the corrosion of zinc [28,39]. Moreover, we have observed in these experiments that when boric acid and sorbitol are both added to the Zn deposition bath, forming a boric-sorbitol complex (BSC), its pH does not shift over several voltammetric deposition cycles [38], differently from baths without or with boric acid (BA) alone or with BA and glycerol. Therefore, in this study, we developed a Zn-Mn deposition bath containing BSC.…”

Section: Introductionmentioning

confidence: 91%

“…In general, the electrodeposited films are free of cracks and dendrites [27][28][29][30][31][32][33][34][35][36][37][38][39]. Also, polyalcohols in the alkaline plating bath inhibit the corrosion of zinc [28,39].…”

Section: Introductionmentioning

confidence: 99%

Study of the influence of a boric–sorbitol complex on Zn–Mn electrodeposition and on the morphology, chemical composition, and structure of the deposits

2011

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Zn-Mn electrodeposition onto Pt from an electrolyte containing boric-sorbitol complex (BSC) or boric acid alone (BA) was studied. The influence of BA or BSC content on the deposition process was investigated by cyclic voltammetry and electrodeposits, produced potentiostatically, were analysed by SEM, EDX, and XRD. The voltammetric studies indicated that an increase in the BSC concentration led to a decrease in the deposition current density. EDX analysis of deposits obtained at -1.60 V showed that increasing the BA or BSC concentration in the bath induced a fall in the Mn content of the electrodeposit and that for BSC this decrease was more significant. SEM images showed that the Zn-Mn electrodeposit obtained in the presence of 0.24 M BSC were smoother than other deposits; hence, BSC acted as a grain refiner at this concentration. XRD analysis of this deposit indicated that it was composed of Zn, Mn, MnZn 13 , and MnH 0.8 .

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“…The organic additives have been shown to affect the physical and mechanical properties of plating such as grain size, luster, uniformity, internal stress, and anti-corrosion [6,7]. A number of organic additives have been reported for zinc plating in chloride solution and the effects of most organic additives on the zinc deposition have been well understood.…”

Section: Introductionmentioning

confidence: 99%

Effect of sodium benzoate on zinc electrodeposition in chloride solution

Huang

et al. 2011

J Appl Electrochem

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The effect of sodium benzoate on the electrodeposition of zinc on carbon steel electrode from acidic chloride solution was studied by cyclic voltammetry (CV), differential capacitance (DC), chronoamperometry (CA), scanning electron microscopy (SEM), and X-ray diffraction (XRD). A dimensionless graph model was used to analyze the nucleation process of zinc. It is found that the sodium benzoate has a blocking effect on the zinc electrodeposition when its concentration is higher than 0.03 M but will accelerate the formation rate of zinc nuclei when its concentration is lower than 0.03 M. Benzoate can be adsorbed on the surface of the electrode, which reduces the interface tension of electrode/solution and favors the formation and growth of zinc nuclei when its concentration is lower than 0.03 M, but forms a separated layer and retards the formation and growth of zinc nuclei when its concentration is higher than 0.03 M.

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Voltammetric and morphological characterization of zinc electrodeposition from acid electrolytes containing boric–polyalcohol complexes

Cited by 27 publications

References 25 publications

Synergistic effect of additives on bright nanocrystalline zinc electrodeposition

Synergistic effect of additives on bright nanocrystalline zinc electrodeposition

Study of the influence of a boric–sorbitol complex on Zn–Mn electrodeposition and on the morphology, chemical composition, and structure of the deposits

Effect of sodium benzoate on zinc electrodeposition in chloride solution

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