Cyclic voltammetric experiment - simulation comparisons of the complex mechanism associated with electrochemical reduction of Zr4+ in LiCl-KCl eutectic molten salt

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dc.contributor.authorFabian, CPen_AU
dc.contributor.authorLuca, Ven_AU
dc.contributor.authorLe, THen_AU
dc.contributor.authorBond, AMen_AU
dc.contributor.authorChamelot, Pen_AU
dc.contributor.authorMassot, Len_AU
dc.contributor.authorCaravaca, Cen_AU
dc.contributor.authorHanley, TLen_AU
dc.contributor.authorLumpkin, GRen_AU
dc.date.accessioned2015-09-30T00:21:29Zen_AU
dc.date.available2015-09-30T00:21:29Zen_AU
dc.date.issued2012-11-29en_AU
dc.date.statistics2015-10-23en_AU
dc.description.abstractNuclear energy increasingly represents an important option for generating largely clean CO2-free electricity and zirconium is a fission product that is expected to be present in irradiated fuels. The present investigation addresses the electrochemical reduction of Zr4+ to Zro in LiCl - KCl eutectic molten salt in the temperature range 425–550°C using cyclic voltammetry (CV), square-wave voltammetry (SWV) and bulk electrolysis. Simulations of the CV data indicate that the initial reduction proceeds through surface confined steps: Zr4+* + 2e− ↔ Zr2+* and Zr2+* + 2e− ↔ Zr* processes (* adsorbed species) followed by a peak-shaped complex diffusion controlled step that consists of a combination of closely spaced processes associated with the reactions Zr4+ + 4e− → Zro and Zr4+ + 3e− → Zr+*. Zr+*, probably in the form of ZrCl* is then further reduced to Zro* at even more negative potentials. The simulations provide the first quantitative analysis of the thermodynamics and kinetics of the Zr4+ reduction in the LiCl-KCl eutectic. © 2012, The Electrochemical Society.en_AU
dc.identifier.citationFabian, C. P., Luca, V., Le, T. H., Bond, A. M., Chamelot, P., Massot, L., Caravaca, C., Hanley, T. L., & Lumpkin, G. R. (2013). Cyclic voltammetric experiment - simulation comparisons of the complex mechanism associated with electrochemical reduction of Zr4+ in LiCl-KCl eutectic molten salt. Journal of the Electrochemical Society, 160(2), H81-H86. doi:10.1149/2.016302jesen_AU
dc.identifier.govdoc6101en_AU
dc.identifier.issn0013-4651en_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitleJournal of the Electrochemical Societyen_AU
dc.identifier.paginationH81-H86en_AU
dc.identifier.urihttp://dx.doi.org/10.1149/2.016302jesen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6262en_AU
dc.identifier.volume160en_AU
dc.language.isoenen_AU
dc.publisherThe Electrochemical Societyen_AU
dc.subjectNuclear energyen_AU
dc.subjectZirconiumen_AU
dc.subjectFission productsen_AU
dc.subjectSpent fuelsen_AU
dc.subjectMolten saltsen_AU
dc.subjectThermodynamicsen_AU
dc.titleCyclic voltammetric experiment - simulation comparisons of the complex mechanism associated with electrochemical reduction of Zr4+ in LiCl-KCl eutectic molten salten_AU
dc.typeJournal Articleen_AU
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