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Haut PDF Zirconium(IV) electrochemical behavior and electrorefining in molten fluoride salts

Haut PDF Zirconium(IV) electrochemical behavior and electrorefining in molten fluoride salts ont été compilés par 123dok FR

Zirconium(IV) electrochemical behavior and electrorefining in molten fluoride salts

Zirconium(IV) electrochemical behavior and electrorefining in molten fluoride salts

... (black). Inset. Variation of the peak current density (◊) and the peak potential (□) versus the square root of the potential scan rate. Working electrode: Ag (S = 0.36 cm 2 ); auxiliary electrode: glassy carbon; ... Voir le document complet

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Zirconium(IV) electrochemical behavior and electrorefining in molten fluoride salts

Zirconium(IV) electrochemical behavior and electrorefining in molten fluoride salts

... consists in investigating the feasibility of the electrochemical recovery of Zr metal in fluoride ...the electrochemical behavior study of zirconium in ... Voir le document complet

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Zirconium(IV) electrochemical behavior in molten LiF-NaF

Zirconium(IV) electrochemical behavior in molten LiF-NaF

... chronoamperometry. In these conditions, zirconium nucleation was demonstrated to be pro gressive, which means that the nuclei are formed ...continuously. In addition, the shape of zirconium ... Voir le document complet

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Electrochemical study of the Eu(III)/Eu(II) system in molten
fluoride media

Electrochemical study of the Eu(III)/Eu(II) system in molten fluoride media

... the electrochemical behaviour and thermodynamic data of both An and fission products dissolved in molten salt ...Furthermore, in order to ensure a longer lifetime of the solvents ... Voir le document complet

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Zirconium(IV) electrochemical behavior in molten LiF-NaF

Zirconium(IV) electrochemical behavior in molten LiF-NaF

... visible and indicate a metallic dendritic structure. In order to con firm that metallic Zr was obtained, a cross section of the cathode was polished and charac terized by SEM EDS analysis (see ... Voir le document complet

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Feasibility of the electrochemical way in molten fluorides for separating Thorium and Lanthanides and extracting Lanthanides from the solvent.

Feasibility of the electrochemical way in molten fluorides for separating Thorium and Lanthanides and extracting Lanthanides from the solvent.

... with molten salts, particularly fluoride ...the Molten Salt Reactor ...of molten salts as liquid fuel and ...accumulate in the melt and have to be eliminated ... Voir le document complet

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On the use of electrochemical techniques to monitor free oxide content in molten fluoride media

On the use of electrochemical techniques to monitor free oxide content in molten fluoride media

... consists in measuring the reduction peak intensity obtained on the SWV voltammograms which was proved to be linear with the content of each ...species in a given glass solution was determined using a ... Voir le document complet

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Direct electrochemical reduction of solid uranium oxide in molten fluoride salts

Direct electrochemical reduction of solid uranium oxide in molten fluoride salts

... worldwide in order to minimise the amount of high radiotoxic waste gener- ated by nuclear power plants ...safe and resistant to ...radiotoxicity and pyrochemical methods represent one of the ... Voir le document complet

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Lanthanides extraction processes in molten fluoride media. Application to nuclear spent fuel reprocessing

Lanthanides extraction processes in molten fluoride media. Application to nuclear spent fuel reprocessing

... from molten salts in the general frame of reprocessing nuclear wastes; one of them is chemical: the precipitation of Ln ions in insoluble compounds (oxides or oxyfluorides); the others use ... Voir le document complet

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Electrochemical reduction of Gd(III) and Nd(III) on reactive cathode material in molten fluoride media

Electrochemical reduction of Gd(III) and Nd(III) on reactive cathode material in molten fluoride media

... advantages, in particular that of avoiding the addition of any chemicals to the melt to be ...The molten salts used for this study were alkaline fluorides, chosen for their high chemical stability ... Voir le document complet

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Electrochemical extraction of europium from molten fluoride media

Electrochemical extraction of europium from molten fluoride media

... Introduction In France, alternative solutions for radioactive wastes manage- ment are under examination since 1991, in the frame of Partitioning and Transmutation (P&T) concepts aiming at ... Voir le document complet

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Direct electroreduction of oxides in molten fluoride salts

Direct electroreduction of oxides in molten fluoride salts

... sively in molten chloride salts (LiCl or CaCl 2 ), for different purposes: high purity Si production [2] , spent nuclear fuel processing (reduc- tion of rare earth oxides [3] , UO 2 [4] , U 3 O 8 [5] ... Voir le document complet

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Electrochemical behavior of neodymium in molten chloride salts

Electrochemical behavior of neodymium in molten chloride salts

... deposit and dissemination of sci- entific research documents, whether they are pub- lished or ...teaching and research institutions in France or abroad, or from public or private research ... Voir le document complet

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Direct electrochemical reduction of solid uranium oxide in molten fluoride salts

Direct electrochemical reduction of solid uranium oxide in molten fluoride salts

... direct electrochemical reduction of UO 2 solid pellets was carried out in LiF–CaF 2 (+2 ...anode. In this case, oxidation of oxide ions present in the melt yields O 2 gas evolution on the ... Voir le document complet

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Behavior and Impact of Zirconium in the Soil–Plant System: Plant Uptake and Phytotoxicity

Behavior and Impact of Zirconium in the Soil–Plant System: Plant Uptake and Phytotoxicity

... prevailing and most common reaction for Zr (Kabata-Pendias 1993 ...mg/kg, and its aqueous chemistry is dominated by the quadrivalent oxidation state (valence electron con fi guration 4 d 2 5 s ¢ ) (Ryzhenko ... Voir le document complet

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Behavior of uranium and its surrogates in molten aluminosilicate glasses in contact with liquid metals

Behavior of uranium and its surrogates in molten aluminosilicate glasses in contact with liquid metals

... milled and melted several times [9,11,20] ...was in- troduced with an intermediate milling ...concentration in the C5 glass is very close to the targeted ...neous in concentration and ... Voir le document complet

240

Comparative study on the chemical stability of Fe 3 O 4 and NiFe 2 O 4 in molten salts

Comparative study on the chemical stability of Fe 3 O 4 and NiFe 2 O 4 in molten salts

... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ... Voir le document complet

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Creep flow and fracture behavior of the oxygen-enriched alpha phase in zirconium alloys

Creep flow and fracture behavior of the oxygen-enriched alpha phase in zirconium alloys

... ‒titanium, zirconium and hafnium‒ can dissolve up to 30 ...oxygen and in oxidizing environments, an oxygen-stabilized α phase easily forms at high temperature from the body centered cubic β ... Voir le document complet

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Electrochemical behaviour of thorium(IV) in molten LiF–CaF2 medium on inert and reactive electrodes

Electrochemical behaviour of thorium(IV) in molten LiF–CaF2 medium on inert and reactive electrodes

... C) and a high density ...detailed in Fig. 12 , was needed in order to operate with a liquid pool as work- ing electrode: the bismuth was placed in a boron nitride (MCSE, quality AX05 oxide ... Voir le document complet

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Neodymium electrowinning into copper-neodymium alloys by mixed oxide reduction in molten fluoride media

Neodymium electrowinning into copper-neodymium alloys by mixed oxide reduction in molten fluoride media

... - low electrical conductivity ( s 650 ! C,0,2barO2 = 1,45 % 10 "6 V "1 cm "1 ) [33] ; - unfavourable Pilling-Bedworth coefficient (V Nd /V Nd2O3 = 0.89). Pilling–Bedworth rule considerations [40] , as ... Voir le document complet

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