Selective Anodic Dissolution of Ag–Zn Alloys in the Eutectic Melt of Alkali Metal Chlorides at 300°С

Kulik, N. P.; Шуров, Н. И.; Tkachev, N. K.

doi:10.1134/s1023193521050086

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…Thus, it can be concluded that the selectivity of the anodic process in DES under chosen conditions is very high. In comparison to work [26], where the dealloying of cast silver-zinc alloys was studied, the size of nano-pores in our present study is smaller by approximately one order of magnitude. Undoubtedly, this result should be attributed to the lower temperature at which the anodic dissolution was carried out in our study: 133 °C versus 300°C [26].…”

Section: Resultscontrasting

confidence: 81%

“…Electrochemical dealloying of silver-zinc and copper–zinc alloys in aqueous electrolytes (room temperature) produces a characteristic pore size of 10 nm. Whereas at 300°C in a molten mixture of lithium, potassium and caesium chlorides it produces sub-micron-sized pores [26]. Therefore, it is advantageous to carry out the dealloying process at intermediate temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Formation of a nanoporous layer on the surface of silver and copper by dealloying of thermal diffusion coatings Me₅Zn₈ (Me=Ag, Cu) in a deep eutectic solvent

Kondina

Rozhentsev

Шуров

et al. 2023

Surface Engineering

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Selective anodic dissolution of pre-galvanized surfaces was used to obtain nano-porous layers of approximately 10 microns thick on copper and silver specimens. To achieve single-phase homogeneous thermal diffusion layers of Cu 5 Zn 8 and Ag 5 Zn 8 , we used a zinc plating process carried out in molten eutectic (KCl-NaCl-ZnCl 2 ) at Т = 370°С. Dealloying of these coatings in a deep eutectic solvent (choline chloride/urea + 0.1 mol/l ZnCl 2 ) at T = 133°C produced a typical bi-continuous structure of pores and ligaments (100 nm) on the surface of the silver and the copper.

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Section: Resultscontrasting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Formation of a nanoporous layer on the surface of silver and copper by dealloying of thermal diffusion coatings Me₅Zn₈ (Me=Ag, Cu) in a deep eutectic solvent

Kondina

Rozhentsev

Шуров

et al. 2023

Surface Engineering

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Electrochemical behavior of lead, silver and bismuth containing alloys in the KCl-PbCl2 melt

Архипов

et al. 2022

Journal of Molecular Liquids

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Electrochemical Separation of Pb-Ag-Sb Alloys in the KCl-PbCl₂ Melt

Arkhipov,

Zaikov,

Khalimullina

et al. 2024

J. Electrochem. Soc.

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Anode dissolution of lead, silver, antimony, and liquid lead-bismuth-antimony alloys has been studied by the polarization method depending on the alloy composition in the molten KCl-PbCl2 eutectic. Lead was found to dissolve and to form Pb2+ ions within the whole range of anode current densities in the Pb-Ag-Sb (49.0-28.0-23.0) and Pb-Ag-Sb (11.0-55.0-34.0) melts. The limiting diffusion current of lead dissolution was observed at the anode current density of 0.34 А/cm2 in the Pb-Ag-Sb (5.0-65.0-30.0) alloy. At the anode current densities exceeding these values the antimony dissolution was observed. To define a mechanism of metals electro dissolution, the number of electrons participating in the electrode reactions was calculated. Based on the polarization curves analysis the regime of electrochemical separation of lead alloys was selected. Metallic lead and the remaining Ag-Sb-Pb alloy with the valuable components concentration exceeding 90 wt.% were obtained in the laboratory-scale electrolytic cell.

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Selective Anodic Dissolution of Ag–Zn Alloys in the Eutectic Melt of Alkali Metal Chlorides at 300°С

Cited by 3 publications

References 22 publications

Formation of a nanoporous layer on the surface of silver and copper by dealloying of thermal diffusion coatings Me₅Zn₈ (Me=Ag, Cu) in a deep eutectic solvent

Formation of a nanoporous layer on the surface of silver and copper by dealloying of thermal diffusion coatings Me₅Zn₈ (Me=Ag, Cu) in a deep eutectic solvent

Electrochemical behavior of lead, silver and bismuth containing alloys in the KCl-PbCl2 melt

Electrochemical Separation of Pb-Ag-Sb Alloys in the KCl-PbCl₂ Melt

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Selective Anodic Dissolution of Ag–Zn Alloys in the Eutectic Melt of Alkali Metal Chlorides at 300°С

Cited by 3 publications

References 22 publications

Formation of a nanoporous layer on the surface of silver and copper by dealloying of thermal diffusion coatings Me5Zn8 (Me=Ag, Cu) in a deep eutectic solvent

Formation of a nanoporous layer on the surface of silver and copper by dealloying of thermal diffusion coatings Me5Zn8 (Me=Ag, Cu) in a deep eutectic solvent

Electrochemical behavior of lead, silver and bismuth containing alloys in the KCl-PbCl2 melt

Electrochemical Separation of Pb-Ag-Sb Alloys in the KCl-PbCl2 Melt

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Product

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Formation of a nanoporous layer on the surface of silver and copper by dealloying of thermal diffusion coatings Me₅Zn₈ (Me=Ag, Cu) in a deep eutectic solvent

Formation of a nanoporous layer on the surface of silver and copper by dealloying of thermal diffusion coatings Me₅Zn₈ (Me=Ag, Cu) in a deep eutectic solvent

Electrochemical Separation of Pb-Ag-Sb Alloys in the KCl-PbCl₂ Melt