Fabian, Cesimiro P. and Luca, Vittorio and Chamelot, Pierre and Massot, Laurent
and Caravaca, Concepción and Lumpkin, Gregory R.
Experimental and simulation study of the electrode reaction mechanism of La3+ in LiCl-KCl eutectic molten salt.
(2012)
Journal of The Electrochemical Society (JES), 159 (4). 63-67. ISSN 0013-4651
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 237kB |
Official URL: http://dx.doi.org/10.1149/2.057204jes
Abstract
Nuclear energy increasingly represents an important option for generating largely clean CO2-free electricity. The present investigation addressed the electrochemical reduction of La3+, a rare earth element, in LiCl - KCl eutectic molten salt in the temperature range 450–550°C using transient techniques such as cyclic voltammetry (CV) and square-wave voltammetry (SWV). Simulation of the CV data suggested a reaction mechanism in which lanthanum reduction occurred in a single three-electron step (La3+ + 3e− → La°). The rate constant, k° was determined to be 5.7 x 10−3, 14.6 x 10−3 and 31.7 x 10−3 cm/s and the Matsuda et al.1 dimensionless parameter Ʌ was 0.82, 1.52 and 2.89 for temperatures of 450, 500 and 550°C, respectively and therefore it was concluded that the was process quasi reversible.
Item Type: | Article |
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HAL Id: | hal-00861174 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | Other partners > Centro de Investigaciones Energéticas Medioambientales y Tecnológicas - CIEMAT (SPAIN) Other partners > Comisión Nacional de Energía Atómica - CNEA (ARGENTINA) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) Other partners > Australian Nuclear Science and Technology Organisation - ANSTO (AUSTRALIA) |
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Deposited On: | 12 Sep 2013 08:37 |
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