Effect of the Polarization Conditions on the Structural Properties of Zinc Dendritic Deposits

Останина, Т. Н.; Рудой, В. М.; Даринцева, А. Б.; Черетаева, А. О.; Демаков, С. Л.; Патрушев, А. В.

doi:10.1007/s11106-014-9551-0

Cited by 3 publications

(3 citation statements)

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“…Further Zn depositions resulted first in 3D Cu and 3D Ni substrates completely coated by Zn, and then in Zn powders on the originally deposited Zn layer (Figure 4f,h). It is well known that all metals can be electrodeposited as powder if the current density is above a critical value [55,68] . Both Zn/ 3D Cu and Zn/ 3D Ni, although they can still be effortlessly bent and twisted, show Zn powder shedding (Figure 4f,h).…”

Section: Resultsmentioning

confidence: 99%

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A Kinetically Superior Rechargeable Zinc‐Air Battery Derived from Efficient Electroseparation of Zinc, Lead, and Copper in Concentrated Solutions

Chen

Wang

et al. 2022

ChemSusChem

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Zinc electrodeposition is currently a hot topic because of its widespread use in rechargeable zinc-air batteries. However, Zn deposition has received little attention in organic solvents with much higher ionic conductivity and current efficiency. In this study, a Zn-betaine complex is synthesized by using ZnO and betainium bis[(trifluoromethyl)sulfonyl]imide and its electrochemical behavior for six organic solvents and electrodeposited morphology are studied. Acetonitrile allowed dendrite-free Zn electrodeposition at room temperature with current efficiencies of up to 86 %. From acetonitrile solutions in which Zn, Pb, and Cu complexes are dissolved in high concentrations, Zn and Pb/ Cu are efficiently separated electrolytically under potentiostatic control, allowing the purification of solutions prepared directly from natural ores. Additionally, a highly flexible Zn anode with excellent kinetics is obtained by using a carbon fabric substrate. A rechargeable zinc-air battery with these electrodes shows an open-circuit voltage of 1.63 V, is stable for at least 75 cycles at 0.5 mA cm À 2 or 33 cycles at 20 mA cm À 2 , and allows intermediate cycling at 100 mA cm À 2 .

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Section: Resultsmentioning

confidence: 99%

“…It is well known that all metals can be electrodeposited as powder if the current density is above a critical value. [55,68] Both Zn/ 3D Cu and Zn/ 3D Ni, although they can still be effortlessly bent and twisted, show Zn powder shedding (Figure 4f,h).…”

Section: Dmentioning

confidence: 99%

A Kinetically Superior Rechargeable Zinc‐Air Battery Derived from Efficient Electroseparation of Zinc, Lead, and Copper in Concentrated Solutions

Chen

Wang

et al. 2022

ChemSusChem

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“…When temperature is elevated to 343 K for 120 min, the size of wires increased with a mean length of 30 μm and a diameter of 2.5 μm. As well known, all metals can be electrodeposited in pow dered form when the current density is larger than a certain critical value [44]. For potentiostatic elec trodeposition of powders, the overpotential must be larger than the overpotential corresponding to the crit ical current density.…”

Section: Deposition Mechanism Of Lead Wiresmentioning

confidence: 99%

Electrochemistry of Pb(II)/Pb during preparation of lead wires from PbO in choline chloride—urea deep eutectic solvent

et al. 2015

Russ J Electrochem

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The electrochemistry of Pb(II)/Pb on a stainless steel electrode during the preparation of lead wires from PbO in choline chloride (ChCl)-urea deep eutectic solvent (DES) was investigated by means of cyclic voltammetry, cathodic polarization and chronoamperometry. The experimental results indicated that the reduction of Pb(II) to Pb is a quasi-reversible process controlled by diffusion at temperature varying from 323 to 343 K, and the corresponding apparent activation energy E a is 52.37 kJ mol -1 . The analysis of chro noamperometry measurements suggested that the initial stage of nucleation of lead on stainless steel electrode is a three dimensional instantaneous nucleation under diffusion control. The effects of reaction time and temperature on the morphology of lead deposits are also examined. The lead wires obtained at 343 K for 120 min have a mean particle size of 30 μm in length and 2.5 μm in diameter. Based on experimental evi dence, the deposition mechanism of sub micrometer lead wires on stainless steel substrate is proposed by dif fusion controlled growth mechanism.

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Production of Zinc, Cadmium, and Their Alloy Powders

Frishberg¹

2019

Handbook of Non-Ferrous Metal Powders

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Effect of the Polarization Conditions on the Structural Properties of Zinc Dendritic Deposits

Cited by 3 publications

References 1 publication

A Kinetically Superior Rechargeable Zinc‐Air Battery Derived from Efficient Electroseparation of Zinc, Lead, and Copper in Concentrated Solutions

A Kinetically Superior Rechargeable Zinc‐Air Battery Derived from Efficient Electroseparation of Zinc, Lead, and Copper in Concentrated Solutions

Electrochemistry of Pb(II)/Pb during preparation of lead wires from PbO in choline chloride—urea deep eutectic solvent

Production of Zinc, Cadmium, and Their Alloy Powders

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