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Fully Developed Radionuclide Nickel Plating Electrolyte
https://doi.org/10.31615/j.corros.prot.2024.113.3-5
Abstract
The present work highlights the distinctive features of the process of developing an electrolyte for radionuclide nickel plating. The development of electrochemical methods for producing radionuclide coatings is associated with a number of technological and metrological difficulties caused by the radiochemical specificity of the process, such as: the use of depletable electrolytes ultra-diluted in metal, special control of wash waters, a small volume of electrolytic baths coupled with an extremely high price of the isotopically enriched material, the need to obtain special permits and licenses. An electrolyte composition is proposed that allows electrochemical deposition of nickel until the bath is completely depleted in metal, which not only allows precise control over the quantitative characteristics of the deposits, but also avoids the formation of liquid radioactive waste. The paper also demonstrates the feasibility of determining, directly or indirectly, based on direct radiometric monitoring of baths and coatings, such process parameters as the completeness of electrolyte depletion by target metal, the rate of decrease in metal concentration in the solution, the current efficiency for the deposition reaction. Practical material was collected in the process of developing a complex alkaline depletable electrolyte for the precipitation of radioactive isotopes of iron group metals.
About the Authors
N. A. Ershova
D. Mendeleev University of Chemical Technology of Russia
Russian Federation
Russian Federation
Nadezhda А. Ershova, postgraduate
9, square, Miusskaya Ploshchad, Moscow, 125047
N. A. Polyakov
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of RAS
Russian Federation
Russian Federation
Nikolai A. Polyakov, Ph.D. in Chemistry, Head of Laboratory
31, Leninskiy pr., Moscow, 119071
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Review
For citations:
Ershova N.A., Polyakov N.A. Fully Developed Radionuclide Nickel Plating Electrolyte. Theory and Practice of Corrosion Protection. 2024;29(3):50-60. (In Russ.) https://doi.org/10.31615/j.corros.prot.2024.113.3-5
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