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Molten salts

Fluoroacidity evaluation in molten salts

Fluoroacidity evaluation in molten salts

... Fig. 3 shows a square wave voltammogramm of the LiF–KF–K 2 SiF 6 (0.57 mol kg −1 ) system on a silver electrode at 800 ◦ C at 9 Hz. The shape is an asymmetrical Gaussian curve, character- istic of a soluble/insoluble ...

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Phase selective synthesis of nickel silicide nanocrystals in molten salts for electrocatalysis of the oxygen evolution reaction

Phase selective synthesis of nickel silicide nanocrystals in molten salts for electrocatalysis of the oxygen evolution reaction

... oxygen evolution reaction (OER) in alkaline water electrolyzers. 22,23 As another family of nickel-p-block element compounds, nickel silicides nanocrystals appear as potential candidates for OER electrocatalysis, ...

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Accelerated atomistic prediction of structure, dynamics and material properties in molten salts

Accelerated atomistic prediction of structure, dynamics and material properties in molten salts

... 1.1. Molten salts in nuclear applications Various next generation nuclear reactors, including a variety of fusion devices, have proposed the use of molten salt coolants ...[1][2][3]. Molten ...

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Actinides separation chemistry in molten salts and its applications at the CEA

Actinides separation chemistry in molten salts and its applications at the CEA

... Molten salts: ionic liquids Non ideal behaviour liquids: notion of activity must be considered. Activity: active concentration. Electrostatic interaction between different species decrease their reactivity ...

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Fluoroacidity evaluation in molten salts

Fluoroacidity evaluation in molten salts

... Fig. 3 shows a square wave voltammogramm of the LiF–KF–K 2 SiF 6 (0.57 mol kg −1 ) system on a silver electrode at 800 ◦ C at 9 Hz. The shape is an asymmetrical Gaussian curve, character- istic of a soluble/insoluble ...

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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] ...

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Colloidal stability of magnetic nanoparticles in molten salts

Colloidal stability of magnetic nanoparticles in molten salts

... Although no significant change in aggregation rate was observed for normal Hamaker coefficients, making the Hamaker coefficients low enough such that the thermal energ[r] ...

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Silicon electrodeposition in molten fluorides

Silicon electrodeposition in molten fluorides

... It was shown, in a previous work [6] , that the volatility of Si(IV) compounds greatly depends on the nature of the fluoride mixture. The NaF–KF eutectic mixture, which highly stabilizes Si(IV) com- pounds, was thus ...

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Electrochemistry of uranium in molten LiCl-LiF

Electrochemistry of uranium in molten LiCl-LiF

... Introduction Molten salts are studied in the nuclear industry because of their resistance to radiolysis and their large electrochemical window al- lowing the production of actinide ...Chloride salts, ...

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Electrochemical extraction of europium from molten fluoride media

Electrochemical extraction of europium from molten fluoride media

... 3.2. Europium electrochemical extraction by co-reduction with aluminium ions The simultaneous reduction of two metallic ions on an inert elec- trode resulting in an alloy of the two metals is based on the same principle ...

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Nitrogen evolution as anodic reaction in molten LiF–CaF2

Nitrogen evolution as anodic reaction in molten LiF–CaF2

... This kind of anodic reaction has been proposed in the particular case of nuclear applications, with the proposal of a new nitride nuclear fuel cycle based on molten salts [3] . The main process of the ...

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Zirconium(IV) electrochemical behavior in molten LiF-NaF

Zirconium(IV) electrochemical behavior in molten LiF-NaF

... in molten salts may be another process for production of zirconium metal [ 4 , 5 ...in molten chloride and fluoride media have been carried out [ 6 e13 ...

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Electrochemistry of uranium in molten LiF-CaF2

Electrochemistry of uranium in molten LiF-CaF2

... that molten chloride media are suit- able for dissolution and pyrochemical processing of metallic or oxide fuels [2–5] ...of molten chlorides in Molten Salt Reactor technology, where molten ...

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Electrochemistry of uranium in molten LiCl-LiF

Electrochemistry of uranium in molten LiCl-LiF

... Introduction Molten salts are studied in the nuclear industry because of their resistance to radiolysis and their large electrochemical window al- lowing the production of actinide ...Chloride salts, ...

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Electrochemistry of uranium in molten LiF–CaF2

Electrochemistry of uranium in molten LiF–CaF2

... that molten chloride media are suit- able for dissolution and pyrochemical processing of metallic or oxide fuels [2–5] ...of molten chlorides in Molten Salt Reactor technology, where molten ...

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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

... rorefining onto first a solid cathode to recover the U and then onto a liquid Cd cathode for the transuranium elements recovery [3,4] . All these pyrochemical separation processes by electrorefining have in common a ...

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Direct electroreduction of oxides in molten fluoride salts

Direct electroreduction of oxides in molten fluoride salts

... fluoride molten salts ...chloride salts. This process could be applied to the fluoride salts, but the purification step has not been studied in this ...

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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

... rorefining onto first a solid cathode to recover the U and then onto a liquid Cd cathode for the transuranium elements recovery [3,4] . All these pyrochemical separation processes by electrorefining have in common a ...

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

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

... Chemical attack at high temperature : chlorination (Collins et al. DOE, USA) Electrochemical processes in molten salts : electrorefining 25 wt.% of spent nuclear fuel Mass compositions of the constituent ...

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Tetrahedral clustering in molten lithium under pressure

Tetrahedral clustering in molten lithium under pressure

... (Received 18 May 2008; revised manuscript received 20 June 2008; published 14 August 2008) A series of electronic and structural transitions are predicted in molten lithium from first principles. A new phase with ...

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