Hydrodynamic effects on the macromorphology of electrodeposited zinc and flow visualization

Jakšić, Milan M.

doi:10.1016/0022-0728(88)80348-6

Cited by 14 publications

(4 citation statements)

References 21 publications

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“…In electrodeposition, dendritic growth is often observed together with hydrogen-gas evolution5678910. Dendrite formation is therefore quite popular in zinc deposition8910, of which reduction potential is much more cathodic than the normal hydrogen potential (NHE).…”

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confidence: 99%

“…Dendrite formation is therefore quite popular in zinc deposition8910, of which reduction potential is much more cathodic than the normal hydrogen potential (NHE). Even in copper deposition whose equilibrium potential is more anodic than NHE, if the electrode potential is shifted to much more cathodic side than NHE, dendrite easily emerges with hydrogen evolution567.…”

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confidence: 99%

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Magneto-Dendrite Effect: Copper Electrodeposition under High Magnetic Field

Miura

Oshikiri

Sugiyama

et al. 2017

Sci Rep

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Ionic vacancy is a by-product in electrochemical reaction, composed of polarized free space of the order of 0.1 nm with a 1 s lifetime, and playing key roles in nano-electrochemical processes. However, its chemical nature has not yet been clarified. In copper electrodeposition under a high magnetic field of 15 T, using a new electrode system called cyclotron magnetohydrodynamic (MHD) electrode (CMHDE) composed of a pair of concentric cylindrical electrodes, we have found an extraordinary dendritic growth with a drastic positive potential shift from hydrogen-gas evolution potential. Dendritic deposition is characterized by the co-deposition of hydrogen molecule, but such a positive potential shift makes hydrogen-gas evolution impossible. However, in the high magnetic field, instead of flat deposit, remarkable dendritic growth emerged. By examining the chemical nature of ionic vacancy, it was concluded that ionic vacancy works on the dendrite formation with the extraordinary potential shift.

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confidence: 99%

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confidence: 99%

Magneto-Dendrite Effect: Copper Electrodeposition under High Magnetic Field

Miura

Oshikiri

Sugiyama

et al. 2017

Sci Rep

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“…For details on hydrodynamic effects on the morphology of electrodeposited zinc, we refer to Ref. 62. Furthermore, increasing the concentration of water (from 20 to 50 vol%) decreases the viscosity as well as the electroactive species.…”

Section: Resultsmentioning

confidence: 99%

Electrodeposition of Zinc from 1-ethyl-3-methylimidazolium acetate-water Mixtures: Investigations on the Applicability of the Electrolyte for Zn-Air Batteries

Ghazvini¹,

Pulletikurthi²,

Cui³

et al. 2018

J. Electrochem. Soc.

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In this paper, the influence of various concentrations of water on the electrochemical and spectroscopic behavior of 1-ethyl-3methylimidazolium acetate ([EMIm]OAc) and of 1 M Zn(OAc) 2 /[EMIm]OAc has been investigated. The results show that the added water can reduce the viscosity and improve the conductivity of the employed electrolyte. Spectroscopy results reveal that both [EMIm]OAc and 1 M Zn(OAc) 2 /[EMIm]OAc interact with water and the extent of interaction varies with the amount of water. Furthermore, the electrochemical behavior of 1 M Zn(OAc) 2 /[EMIm]OAc is changed with the addition of different concentrations of water. A minimum of 20 vol% water was necessary to electrodeposit Zn from 1 M Zn(OAc) 2 /[EMIm]OAc at room temperature. Moreover, 1 M Zn(OAc) 2 /[EMIm]OAc with 20 vol% water was assessed for its possible application as an electrolyte in a Zn-air battery.

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“…Among the influencing factors for homogenous large-scale deposition, the solution flow and the electric field should play significant roles in zinc electrodeposition. The morphology appears to be susceptible to the flow field and also dependent on the flow pattern [ 39 , 40 ]. R.D.…”

Section: Introductionmentioning

confidence: 99%

The Effect of the Solution Flow and Electrical Field on the Homogeneity of Large-Scale Electrodeposited ZnO Nanorods

Zhao,

Li,

et al. 2024

Materials

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In this paper, we demonstrate the significant impact of the solution flow and electrical field on the homogeneity of large-scale ZnO nanorod electrodeposition from an aqueous solution containing zinc nitrate and ammonium nitrate, primarily based on the X-ray fluorescence results. The homogeneity can be enhanced by adjusting the counter electrode size and solution flow rate. We have successfully produced relatively uniform nanorod arrays on an 8 × 10 cm2 i-ZnO-coated fluorine-doped tin oxide (FTO) substrate using a compact counter electrode and a vertical stirring setup. The as-grown nanorods exhibit similar surface morphologies and dominant, intense, almost uniform near-band-edge emissions in different regions of the sample. Additionally, the surface reflectance is significantly reduced after depositing the ZnO nanorods, achieving a moth-eye effect through subwavelength structuring. This effect of the nanorod array structure indicates that it can improve the utilization efficiency of light reception or emission in various optoelectronic devices and products. The large-scale preparation of ZnO nanorods is more practical to apply and has an extremely broad application value. Based on the research results, it is feasible to prepare large-scale ZnO nanorods suitable for antireflective coatings and commercial applications by optimizing the electrodeposition conditions.

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Hydrodynamic effects on the macromorphology of electrodeposited zinc and flow visualization

Cited by 14 publications

References 21 publications

Magneto-Dendrite Effect: Copper Electrodeposition under High Magnetic Field

Magneto-Dendrite Effect: Copper Electrodeposition under High Magnetic Field

Electrodeposition of Zinc from 1-ethyl-3-methylimidazolium acetate-water Mixtures: Investigations on the Applicability of the Electrolyte for Zn-Air Batteries

The Effect of the Solution Flow and Electrical Field on the Homogeneity of Large-Scale Electrodeposited ZnO Nanorods

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