Cooperative Electroreduction of Cerium and Nickel Ions in the Equimolar KCl–NaCl Melt at 973 K

{"title":"Cooperative Electroreduction of Cerium and Nickel Ions in the Equimolar KCl–NaCl Melt at 973 K","authors":"Kh. B. Kushkhov,&nbsp;F. A. Kisheva,&nbsp;M. K. Vindizheva,&nbsp;R. A. Mukozheva","doi":"10.1134/S0036029524701878","DOIUrl":null,"url":null,"abstract":"<p><b>Abstract</b>—Cyclic and square-wave voltammetry and open-circuit chronopotentiometry (on/off curves) are used to study the cooperative electroreduction of cerium and nickel ions at a tungsten electrode in the equimolar KCl–NaCl melt at 973 K. Analysis of cyclic voltammetry curves of the KCl–NaCl–СеCl₃–NiCl₂ molten system and results obtained by open-circuit chronopotentiometry (on/off curves) and square-wave voltammetry allow us to conclude that the electrochemical synthesis of cerium intermetallics with nickel can be fulfilled only in a kinetic mode, i.e., by electroreduction of [CeCl₆]^3– ions on metallic nickel preliminary deposited on the tungsten electrode, which is accompanied by the formation of Ce_<i>x</i>Ni_<i>y</i> intermetallics as a result of reactive diffusion. Based on the data obtained by different physicochemical methods, electrochemical synthesis of the Ce_<i>x</i>Ni_<i>y</i> intermetallics is performed. The synthesized intermetallics are studied by X-ray diffraction using a D2Phaser diffractometer and a VEGA 3LMN (Tescan) scanning electron microscope.</p>","PeriodicalId":769,"journal":{"name":"Russian Metallurgy (Metally)","volume":"2024 4","pages":"954 - 959"},"PeriodicalIF":0.4000,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Metallurgy (Metally)","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0036029524701878","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}