A Fundamental Electrochemical Investigation of Bromoaluminate and Mixed Chloro-Bromoaluminate Room Temperature Molten Salt Systems

1989 ◽  
Author(s):  
Jeffrey A. Boon ◽  
John S. Wilkes ◽  
John A. Lanning
Keyword(s):  
Molten Salt ◽  
Room Temperature ◽  
Electrochemical Investigation ◽  
Salt Systems

Conductivities of Room Temperature Molten Salts Containing AlCl3, Measured by a Computerized Direct Current Method

2001 ◽  
Vol 56 (9-10) ◽  
pp. 670-676
Author(s):  
Hsin-Yi Hsu ◽  
Chao-Cheng Yang
Keyword(s):  
Molten Salt ◽  
Direct Current ◽  
Molten Salts ◽  
Room Temperature ◽  
Current Method ◽  
Activation Energies ◽  
Nium Chloride ◽  
Temperature Range ◽  
Different Temperatures ◽  
Salt Systems

Abstract The conductivities of the binary room-temperature molten salt systems AlCl3-N-n-butylpyridinium chloride (BPC), AlCl3-l-ethyl-3-methylimidazolium chloride (EMIC) and AlCl3-benzyltriethylammo-nium chloride (BTEAC) have been measured at different temperatures and compositions by a d.c. four-probes method. There is a maximum of the conductivity at 50 mol% AlCl3 in the AlCl3-BPC and AlCl3-EMIC systems at 40 to 80 °C, their activation energies being relatively low (20.79 and 14.76 kJ/mol, respec­ tively). As to the A1C13-BTEAC system, there is an irregular change in the conductivity at 40-70 mol% AlCl3 in the temperature range 50 to 80 °C. The conductivities of the three RTMS are in the order AlCl3-EMIC > AlCl3-BPC > AlCl3-BTEAC, the reason being discussed.

scholarly journals Developing Practical Models of Complex Salts for Molten Salt Reactors

Thermo ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 168-178
Author(s):  
Theodore M. Besmann ◽  
Juliano Schorne-Pinto
Keyword(s):  
Molten Salt ◽  
Nearest Neighbor ◽  
System Modeling ◽  
Model Parameters ◽  
Calphad Approach ◽  
Coordination Numbers ◽  
Regression Methods ◽  
Complex Salts ◽  
Salt Systems ◽  
Fitting Model

Molten salt reactors (MSRs) utilize salts as coolant or as the fuel and coolant together with fissile isotopes dissolved in the salt. It is necessary to therefore understand the behavior of the salts to effectively design, operate, and regulate such reactors, and thus there is a need for thermodynamic models for the salt systems. Molten salts, however, are difficult to represent as they exhibit short-range order that is dependent on both composition and temperature. A widely useful approach is the modified quasichemical model in the quadruplet approximation that provides for consideration of first- and second-nearest-neighbor coordination and interactions. Its use in the CALPHAD approach to system modeling requires fitting parameters using standard thermodynamic data such as phase equilibria, heat capacity, and others. A shortcoming of the model is its inability to directly vary coordination numbers with composition or temperature. Another issue is the difficulty in fitting model parameters using regression methods without already having very good initial values. The proposed paper will discuss these issues and note some practical methods for the effective generation of useful models.

Enhancing oxygen adsorption capabilities in Li–O2battery cathodes through solid perfluorocarbons

2017 ◽  
Vol 5 (27) ◽  
pp. 14152-14164 ◽  
Author(s):  
Moran Balaish ◽  
Yair Ein-Eli
Keyword(s):  
Carbon Black ◽  
Room Temperature ◽  
Nitrogen Adsorption ◽  
Oxygen Adsorption ◽  
Electrochemical Investigation ◽  
Liquid Adsorption

Perfluorocarbons, solid at room temperature, were added at different weight ratios to carbon black-based air electrodes for Li–O2battery. PFCs-modified air-electrodes showed improved battery performance and were characterized by HRSEM images, nitrogen adsorption (BET), liquid adsorption, a comprehensive wettability study and electrochemical investigation.

Aluminium corrosion in room temperature molten salt

2004 ◽  
Vol 132 (1-2) ◽  
pp. 206-208 ◽  
Author(s):  
Béatrice Garcia ◽  
Michel Armand
Keyword(s):  
Molten Salt ◽  
Room Temperature

Thermodynamic properties of the binary molten salt systems, PbBr2-KBr, PbBr2-RbBr and PbBr2-CsBr, by measurement of the electromotive forces of galvanic cells

1981 ◽  
Vol 34 (3) ◽  
pp. 479 ◽  
Author(s):  
H Bloom ◽  
MS White
Keyword(s):  
Thermodynamic Properties ◽  
Molten Salt ◽  
Activity Coefficients ◽  
Molten Salts ◽  
Free Energies ◽  
Complex Ions ◽  
Galvanic Cells ◽  
Salt Systems

The electromotive forces of galvanic cells for the formation of PbBr2 in the molten binary salt systems, PbBr2-KBr, PbBr2,-RbBr and PbBr2-CsBr, have been measured. Activities, activity coefficients and partial molar free energies have been calculated for each component of the three systems. Integral free energies of mixing have also been calculated. Various models of mixing of molten salts have been applied to the results. The systems contain complex ions, probably mixtures of PbBr42-, PbBr64- with some PbBr3-.

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