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Voltammetric studies of iron in molten MgCl2+NaCl+KCl: Part I. The reduction of Fe(II)
Affiliation:1. Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry & Environment, South China Normal University, Guangzhou 510006, PR China;2. School of Chemistry & Environment, South China Normal University, Guangzhou 510006, PR China;3. Guangdong Provincial Engineering Technology Research Center For Transparent Conductive Materials, South China Normal University, Guangzhou 510006, PR China;1. Department of Nuclear Engineering, University of New Mexico, MSC01 1120, 1 University of New Mexico, Albuquerque, NM 87131, United States;2. Center for Nondestructive Evaluation, Department of Aerospace Engineering and Department of Mechanical Engineering, Iowa State University, 115A ASC II, 1915 Scholl Road, Ames, IA 50011, United States;1. Idaho National Laboratory, Idaho Falls, ID, 83415-2209, USA;2. Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA;1. Nuclear Fuel Cycle Process Development Group, Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 34057, Republic of Korea;2. Department of Quantum Energy Chemical Engineering, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
Abstract:The electrochemical reduction of Fe2+ ions in the MgCl2+NaCl+KCl eutectic at temperatures between 485 and 550°C has been successfully investigated using the techniques of cyclic voltammetry and chronoamperometry. The reduction was diffusion controlled and involved a single two-electron transfer process at tungsten and vitreous carbon electrodes as well as at platinum electrodes where Fe/Pt alloy formation occurred. Chronoamperometric studies suggested that nucleation and crystal growth phenomena were important.
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