Chalcogenide chemistry in molten salts. I. Selenium(IV) acido-basic and redox properties in the LiCl–KCl eutectic melt at 450, 500, 550 and 600 °C

Rouquette-Sanchez, Sylvie; Picard, Gauthier

doi:10.1016/j.jelechem.2004.06.010

Cited by 18 publications

(9 citation statements)

References 20 publications

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“…LiCl and KCl are dried and mixed under argon before melting. The melting procedure has been described previously [12]. The tubular furnace (80 cm diameter) used is connected to a regulation monitor provided by ERALY/France.…”

Section: Redox Reactionmentioning

confidence: 99%

“…Table 1 gives the reactions considered and the thermodynamical potential calculated from the data of the literature (HSC database). The calculation of E • [12] is derived from the calculation of the Gibbs enthalpy G • of the chemical reaction given in the Table 1 using the following relation: in which E • is the potential (V), G • the Gibbs enthalpy (J), n the number of electrons exchanged in the chemical redox reaction and F the Faraday constant (F = 96485 C). The redox electrochemical system Cl 2 (1atm)/Cl − is taken as the potential reference and reference states are molar fractions for solid compounds and partial pressures for gaseous compounds.…”

Section: Thermodynamical Calculationsmentioning

confidence: 99%

See 1 more Smart Citation

Electrochemistry of thorium fluoride in LiCl-KCl eutectic melts and methodology for speciation studies with fluorides ions

Delpech

Jaskierowicz

Rodrigues

2014

Electrochimica Acta

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Section: Redox Reactionmentioning

confidence: 99%

Section: Thermodynamical Calculationsmentioning

confidence: 99%

Electrochemistry of thorium fluoride in LiCl-KCl eutectic melts and methodology for speciation studies with fluorides ions

Delpech

Jaskierowicz

Rodrigues

2014

Electrochimica Acta

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“…Deposition of Cu‐Ga 95, Cu‐In 68,96–100, In‐Ga 101 and Cu‐In‐Ga 102 alloys has been demonstrated, with the latter two approaches leading to 6·6% and 4% efficiency cells, respectively. Electrochemical deposition processes for Se layers for use in stacked precursor structures have been proposed from organic solutions 103, alkaline selenosulphite solutions 104–106 and molten salts 107.…”

Section: Electrochemical Processes For Cigs Depositionmentioning

confidence: 99%

Non‐vacuum methods for formation of Cu(In, Ga)(Se, S)₂ thin film photovoltaic absorbers

Hibberd

Chassaing

Liu³

et al. 2010

Progress in Photovoltaics

321

196

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Polycrystalline thin films of copper indium diselenide and its alloys with gallium and sulphur (CIGS) have proven to be suitable for use as absorbers in high-efficiency solar cells. Record efficiency devices of 20% power conversion efficiency have been produced by co-evaporation of the elements under high vacuum. However, non-vacuum methods for absorber deposition promise significantly lower capital expenditure and reduced materials costs, and have been used to produce devices with efficiencies of up to 14%. Such efficiencies are already high enough for commercial up-scaling to be considered and several companies are now trying to develop products based on non-vacuum deposited CIGS absorbers. This article will review the wide range of non-vacuum techniques that have been used to deposit CIGS thin films, highlighting the state of the art and efforts towards commercialization.

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“…LiCl and LiF mixture (used for the preparation of Bi-Li metallic solvent) is prepared in the same manner. The melting procedure has been described previously [19]. The tubular furnace (80 cm diameter) used is connected to a regulation monitor provided by Eraly/France.…”

Section: Technicalmentioning

confidence: 99%

Pyrochemical reprocessing of molten salt fast reactor fuel: focus on the reductive extraction step

2015

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The nuclear fuel reprocessing is a prerequisite for nuclear energy to be a clean and sustainable energy. In the case of the molten salt reactor containing a liquid fuel, pyrometallurgical way is an obvious way. The method for treatment of the liquid fuel is divided into two parts. In-situ injection of helium gas into the fuel leads to extract the gaseous fission products and a part of the noble metals. The second part of the reprocessing is performed by ‘batch’. It aims to recover the fissile material and to separate the minor actinides from fission products. The reprocessing involves several chemical steps based on redox and acido-basic properties of the various elements contained in the fuel salt. One challenge is to perform a selective extraction of actinides and lanthanides in spent liquid fuel. Extraction of actinides and lanthanides are successively performed by a reductive extraction in liquid bismuth pool containing metallic lithium as a reductive reagent. The objective of this paper is to give a description of the several steps of the reprocessing retained for the molten salt fast reactor (MSFR) concept and to present the initial results obtained for the reductive extraction experiments realized in static conditions by contacting LiF-ThF4-UF4-NdF3 with a lab-made Bi-Li pool and for which extraction efficiencies of 0.7% for neodymium and 14.0% for uranium were measured. It was concluded that in static conditions, the extraction is governed by a kinetic limitation and not by the thermodynamic equilibrium.

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Chalcogenide chemistry in molten salts. I. Selenium(IV) acido-basic and redox properties in the LiCl–KCl eutectic melt at 450, 500, 550 and 600 °C

Cited by 18 publications

References 20 publications

Electrochemistry of thorium fluoride in LiCl-KCl eutectic melts and methodology for speciation studies with fluorides ions

Electrochemistry of thorium fluoride in LiCl-KCl eutectic melts and methodology for speciation studies with fluorides ions

Non‐vacuum methods for formation of Cu(In, Ga)(Se, S)₂ thin film photovoltaic absorbers

Pyrochemical reprocessing of molten salt fast reactor fuel: focus on the reductive extraction step

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Chalcogenide chemistry in molten salts. I. Selenium(IV) acido-basic and redox properties in the LiCl–KCl eutectic melt at 450, 500, 550 and 600 °C

Cited by 18 publications

References 20 publications

Electrochemistry of thorium fluoride in LiCl-KCl eutectic melts and methodology for speciation studies with fluorides ions

Electrochemistry of thorium fluoride in LiCl-KCl eutectic melts and methodology for speciation studies with fluorides ions

Non‐vacuum methods for formation of Cu(In, Ga)(Se, S)2 thin film photovoltaic absorbers

Pyrochemical reprocessing of molten salt fast reactor fuel: focus on the reductive extraction step

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Product

Resources

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Non‐vacuum methods for formation of Cu(In, Ga)(Se, S)₂ thin film photovoltaic absorbers