{"title":"Effect of Molecular Iodine on the Electrophoretic Properties of Suspensions for Electrophoretic Deposition","authors":"E. G. Kalinina, D. S. Rusakova, T. V. Terziyan","doi":"10.1134/S0036024424701851","DOIUrl":null,"url":null,"abstract":"<p>The authors explore the electrokinetic properties and electrophoretic deposition (EPD) of non-aqueous suspensions of samarium-doped cerium dioxide Ce<sub>0.8</sub>Sm<sub>0.2</sub>O<sub>1.9</sub> (SDC) with added molecular iodine at concentrations of 0 to 1 g/L. The study reveals an inversion of zeta potential in the SDC suspension as the concentration of iodine rises. Notable cathodic deposition is observed under EPD conditions in a suspension with 10 g/L of SDC and 1 g/L of added iodine at voltages above the threshold value (6 V), despite a negative zeta potential of −5.9 mV measured electroacoustically. Findings suggest a potential interpretation related to overcompensating for the charge in the suspension, due to high concentrations of co-ions and counterions within a double electric layer (DEL).</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Physical Chemistry A","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S0036024424701851","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The authors explore the electrokinetic properties and electrophoretic deposition (EPD) of non-aqueous suspensions of samarium-doped cerium dioxide Ce0.8Sm0.2O1.9 (SDC) with added molecular iodine at concentrations of 0 to 1 g/L. The study reveals an inversion of zeta potential in the SDC suspension as the concentration of iodine rises. Notable cathodic deposition is observed under EPD conditions in a suspension with 10 g/L of SDC and 1 g/L of added iodine at voltages above the threshold value (6 V), despite a negative zeta potential of −5.9 mV measured electroacoustically. Findings suggest a potential interpretation related to overcompensating for the charge in the suspension, due to high concentrations of co-ions and counterions within a double electric layer (DEL).
期刊介绍：
Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world.
Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.
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