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Zirconium(IV) electrochemical behavior in molten LiF-NaF

Quaranta, D. and Massot, Laurent and Gibilaro, Mathieu and Mendes, Eric and Serp, Jérôme and Chamelot, Pierre Zirconium(IV) electrochemical behavior in molten LiF-NaF. (2018) Electrochimica Acta, 265. 586-593. ISSN 0013-4686

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Official URL: https://doi.org/10.1016/j.electacta.2018.01.213

Abstract

Zirconium has a large number of properties that make it very attractive for different applications in several activity fields (nuclear, pyrotechnics, armament …). This article is devoted to the study of zirconium electrochemical behavior and crystallization phenomena on silver electrode in the LiF–NaF eutectic mixture in the 690–900 °C temperature range, using cyclic voltammetry, square wave voltammetry and chronoamperometry. The result showed that Zr(IV) is reduced into Zr in a simple-step exchanging four electrons and that zirconium nucleation is progressive whatever the temperature and the overvoltage. Nuclei growth takes place in all three dimensions and is limited by diffusion of Zr(IV) ions. The influence of overvoltage on the zirconium nucleation rate was also studied.

Item Type:Article
HAL Id:hal-02135613
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Loetitia MOYA
Deposited On:03 Dec 2018 09:05

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