The electrochemical behaviour of the Pr(III)/Pr redox system at Bi and Cd liquid electrodes in molten eutectic LiCl–KCl

Castrillejo, Y.; Bermejo, Manuel R.; Arocas, Paloma Díaz; Martínez, Ana María; Barrado, E.

doi:10.1016/j.jelechem.2005.03.001

Cited by 131 publications

(88 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They were used for the current Gibbs-Duhem integration as described below. According to Castrillejo et al, [14] a value of ln a Cd = À0.574 could be calculated for the two-phase field Cd 6 Pr + Cd 58 Pr 13 , which compares reasonably well with the value of about À0.33 obtained in the current study.…”

Section: Thermodynamic Activity Of CD At 823 K (550°c)supporting

confidence: 91%

“…The respective coefficients, obtained from the emf measurements, were listed as follows:a 1 = À182.25 J mol . From the calculated excess partial Gibbs energy of Pr at 823 K (550°C), a value for the thermodynamic activity of Pr could be obtained for the two-phase field Cd 11 Pr + L, namely, ln a Pr = À19.34, which agrees perfectly with the activity value of Castrillejo et al, [14] given as À19.55. The activity value ln a Pr = À19.34, calculated from the empirical function of Johnson and Yonco, served as an integration constant for Gibbs-Duhem integration performed in the current study.…”

supporting

confidence: 77%

“…Activity values in the two-phase fields Cd 11 Pr + L and Cd 6 Pr + Cd 11 Pr could not be obtained from the current results but were taken from Johnson and Yonco [13] and Castrillejo et al, [14] respectively, based on their experimental values of the Pr activity and their integral Gibbs energies of formation of the compounds Cd 6 Pr and Cd 11 Pr. They were used for the current Gibbs-Duhem integration as described below.…”

Section: Thermodynamic Activity Of CD At 823 K (550°c)mentioning

confidence: 99%

“…The value, given as À11.2 kJ g-atom À1 at 823 K (550°C), served as an integration constant for the current calculations. In an early study of Castrillejo et al, [14] Gibbs energies of formation of the three intermetallic compounds Cd 11 Pr, Cd 6 Pr, and Cd 58 Pr 13 were examined by electrochemical techniques. These values were determined to be À11.2 ± 0.1, À18.7 ± 0.1, and À22.9 ± 0.1 kJ g-atom À1 , respectively, for a temperature of 823 K (550°C).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Thermochemical Investigations in the System Cadmium-Praseodymium Relevant for Pyrometallurgical Fuel Reprocessing

Reichmann

Ipser

2013

Metall Mater Trans A

View full text Add to dashboard Cite

Vapor pressure measurements, in terms of a (non-)isothermal isopiestic method, were carried out in the system Cd-Pr between 749 K and 1067 K (476°C and 794°C). Thermodynamic activities of cadmium as a function of temperature were obtained directly for the composition ranging from 50.0 to 85.7 at. pct Cd. From these results, partial molar enthalpies of mixing of Cd were derived for the corresponding composition range. The activity values of Cd were converted to an average sample temperature of 823 K (550°C) by applying an integrated form of the Gibbs-Helmholtz equation. These data indicate that Cd 2 Pr and Cd 58 Pr 13 are probably the most stable intermetallic compounds in this system. Using an activity value of Pr from the literature as integration constant, Gibbs-Duhem integration was performed, and integral Gibbs energies are presented at 823 K (550°C), referred to Cd(l) and a-Pr(s). Gibbs energies of formation at the stoichiometric compositions of the phases Cd 6 Pr, Cd 58 Pr 13 , Cd 45 Pr 11 , Cd 3 Pr, and Cd 2 Pr were determined to be about À18.8, À23.5, À24.8, À28.7, and À33.8 kJ g-atom À1 at 823 K (550°C), respectively.

show abstract

Section: Thermodynamic Activity Of CD At 823 K (550°c)supporting

confidence: 91%

supporting

confidence: 77%

Section: Thermodynamic Activity Of CD At 823 K (550°c)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermochemical Investigations in the System Cadmium-Praseodymium Relevant for Pyrometallurgical Fuel Reprocessing

Reichmann

Ipser

2013

Metall Mater Trans A

View full text Add to dashboard Cite

show abstract

“…3 Next, the metal ingot is transferred to an electrochemical cell of LiCl-KCl molten salt at 773 K for the electrorefining process, 5 where pure uranium metal is recovered through an electrochemical reduction route. Finally, the uranium and transuranium (TRU) nuclides remaining after the electrorefining process are completely recovered during an electrowinning process, 6 where uranium and TRU are co-deposited at a liquid cadmium electrode to create a cadmium-based alloy for nuclear non-proliferation purposes.…”

Section: Introductionmentioning

confidence: 99%

Elucidation of Electrode Reaction of EuCl₃in LiCl-KCl Eutectic Melts through CV Curve Analysis

Kim¹,

Jung²,

Kim³

et al. 2011

Bulletin of the Korean Chemical Society

View full text Add to dashboard Cite

The electrode reaction of Eu 3+ in a LiCl-KCl eutectic melt has been re-examined using cyclic voltammetry (CV). In this work, for the first time, the kinetic details of a Eu 3+ /Eu 2+ redox system have been completely elucidated, along with the thermodynamic property, through a curve fitting applied to experimental CV data, which were obtained in a wide scan rate range of 0.5 to 10 V/s. The simulated results showed an excellent fit to all experimental CV data simultaneously, even though the curve fittings were performed within a large dynamic range of initial transfer coefficient values, formal potentials, and standard rate constants. As a result, a proper formal potential, transfer coefficient, and standard rate constant for the Eu 3+ /Eu 2+ redox system were successfully extracted using the CV curve fitting.

show abstract

Electrochemical Behavior of Titanium Ions at Liquid Metal Cathodes in Molten Salts

Jiao

Zhang

Jiao

2016

Proceedings of the 13th World Conference on Titanium

View full text Add to dashboard Cite

The electrochemical behavior of titanium ions at liquid metal cathodes, such as Sn, in molten chloride salts has been studied by cyclic voltammetry and chronopotentiometry. The results show that the titanium is favoured to deposit at the liquid metal cathodes compared to the solid cathode. Titanium and its alloys were obtained by galvanostatic electrolysis under different current density. The cathodic product prepared was analyzed by XRD, SEM and EDS. The results revealed that the less current density, the more depth the titanium diffused into the cathodic metal.

show abstract

The electrochemical behaviour of the Pr(III)/Pr redox system at Bi and Cd liquid electrodes in molten eutectic LiCl–KCl

Cited by 131 publications

References 35 publications

Thermochemical Investigations in the System Cadmium-Praseodymium Relevant for Pyrometallurgical Fuel Reprocessing

Thermochemical Investigations in the System Cadmium-Praseodymium Relevant for Pyrometallurgical Fuel Reprocessing

Elucidation of Electrode Reaction of EuCl₃in LiCl-KCl Eutectic Melts through CV Curve Analysis

Electrochemical Behavior of Titanium Ions at Liquid Metal Cathodes in Molten Salts

Contact Info

Product

Resources

About

The electrochemical behaviour of the Pr(III)/Pr redox system at Bi and Cd liquid electrodes in molten eutectic LiCl–KCl

Cited by 131 publications

References 35 publications

Thermochemical Investigations in the System Cadmium-Praseodymium Relevant for Pyrometallurgical Fuel Reprocessing

Thermochemical Investigations in the System Cadmium-Praseodymium Relevant for Pyrometallurgical Fuel Reprocessing

Elucidation of Electrode Reaction of EuCl3in LiCl-KCl Eutectic Melts through CV Curve Analysis

Electrochemical Behavior of Titanium Ions at Liquid Metal Cathodes in Molten Salts

Contact Info

Product

Resources

About

Elucidation of Electrode Reaction of EuCl₃in LiCl-KCl Eutectic Melts through CV Curve Analysis