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Sn nucleation and growth from Sn(II)dissolved in ethylene glycol:Electrochemical behavior and temperature effect

Transactions of Nonferrous Metals Society of China 2024年第8期34卷 2714-2732页

作者： Kiem Van DO Hieu Van NGUYEN Tu Manh LE Faculty of Electrical and Electronic Engineering Phenikaa UniversityYen NghiaHa-DongHanoi 10000Vietnam phenikaa Research and Technology Institute(PRATI) A&A Green Phoenix Group167 Hoang NganHanoi 10000Vietnam Faculty of Materials Science and Engineering Phenikaa Institute for Advanced Study(PIAS)Phenikaa UniversityHanoi 10000Vietnam

Thermodynamic and kinetic aspects of Sn nucleation and growth processes onto a glassy carbon electrode from SnCl2·2H2O dissolved in ethylene glycol solutions were *** reduction and oxidation peaks observed in voltammograms have demonstrated the capability of ethylene glycol solutions to electrodeposit *** temperature-dependence of diffusion coefficient values derived from potentiodynamic and potentiostatic studies helped to determine and validate estimations of the activation energy for Sn(II)bulk *** results have identified that,the suitable model to describe the early stage of Sn electrodeposition could be composed of Sn three-dimensional nucleation and diffusion-controlled growth and water reduction contributions,which was duly validated by theoretical and experimental *** the model,typical kinetic parameters such as the nucleation frequency of Sn(A),number density of Sn nuclei(N0),and diffusion coefficient of Sn(II)ions(D),were *** presence of Sn nuclei with excellent quality and their structures were verified using SEM,EDX,and XRD techniques.

关键词： Sn nucleation growth ethylene glycol nucleation kinetics electrodeposition

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Tin electronucleation and growth from Sn(II) in nonaqueous solutions based on ethylene glycol: Electrochemical behavior and temperature effect

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Transactions of Nonferrous Metals Society of China 2023年

作者： Kiem Do Van Nguyen Van Hieu Tu Le Manh phenikaa Research and Technology Institute (PRATI)， A&A Green Phoenix Group Faculty of Electrical and Electronic Engineering， phenikaa University Faculty of Materials Science and Engineering， phenikaa Institute for Advanced Study (PIAS)， phenikaa University

Thermodynamic and kinetic aspects of tin electronucleation and growth processes onto a glassy carbon electrode from SnCl2·2H2O dissolved in ethylene glycol solutions were studied. Typical reduction and oxidation peaks observed in voltammograms have demonstrated the capability of ethylene glycol solutions to electrodeposit Sn. The temperature-dependence of diffusion coefficient values derived from potentiodynamic and potentiostatic studies helped to determine and validate estimations of the activation energy for Sn(II) bulk diffusion. Chronoamperometric results have identified that， the suitable model to describe the early stage of Sn electrodeposition could be composed of Sn three-dimensional nucleation and diffusion-controlled growth and water reduction contributions， which was duly validated by theoretical and experimental approaches. From the model， typical kinetic parameters such as nucleation frequency， A， number density of tin nuclei， N0， and D， were determined. The presence of tin nuclei with excellent quality and their structure were verified using SEM， EDX， and XRD techniques.

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