Voltaic cells in fused salts part iv. electrode potentials of the systems: TliT1C1 (KC1-N0C1), CuiCuCl (KC1-N0C1), CuiCuC1 2 (KC1-N0C1), Cr/Cr Cl, (KC1-NoC1), AND CrerC13 KC1-NaC1). redox potentials of the systems Pt/CuCl, CuC1 2 (KC1-NoC1), and Pt/CrC1 2 , Cr CI, (KCI-410C1)

1958 ◽  
Author(s):  
S N Flengas ◽  
T R Ingraham
Keyword(s):  
Redox Potentials ◽  
Fused Salts ◽  
Electrode Potentials

VOLTAIC CELLS IN FUSED SALTS: PART IV. ELECTRODE POTENTIALS OF THE SYSTEMS: Tl/TlCl (KCl–NaCl), Cu/CuCl (KCl–NaCl), Cu/CuCl2 (KCl–NaCl), Cr/CrCl2 (KCl–NaCl), AND Cr/CrCl3 (KCl–NaCl). REDOX POTENTIALS OF THE SYSTEMS: Pt/CuCl, CuCl2 (KCl–NaCl), AND Pt/CrCl2, CrCl3 (KCl–NaCl)

1958 ◽  
Vol 36 (7) ◽  
pp. 1103-1115 ◽  
Author(s):  
S. N. Flengas ◽  
T. R. Ingraham
Keyword(s):  
Reference Electrode ◽  
Effect Of Temperature ◽  
Redox Potentials ◽  
Fused Salts ◽  
Electrode Potentials ◽  
Standard Electrode Potentials

Using a Ag/AgCl (KCl–NaCl) reference electrode, the standard electrode potentials of the systems Tl/TlCl (KCl–NaCl), Cu/CuCl (KCl–NaCl), Cu/CuCl2 (KCl–NaCl), Cr/CrCl2 (KCl–NaCl), and Cr/CrCl3 (KCl–NaCl) were measured and found to be: 0.650 volt at 680 °C, and 0.250, −0.175, 0.755, and 0.423 at 700 °C. respectively. The standard redox potentials of the systems Pt/CuCl2, CuCl (KCl–NaCl), and Pt/CrCl3, CrCl2 (KCl–NaCl) were also measured at 700 °C. and found to be 0.600 and 0.240 volt respectively. The effect of temperature on the electromotive forces of the above cells was measured and the heats of the cell reactions were calculated from the data.

VOLTAIC CELLS IN FUSED SALTS: PART II. THE SYSTEMS: (a) SILVER – SILVER CHLORIDE, LEAD – LEAD CHLORIDE; (b) SILVER – SILVER CHLORIDE, ZINC – ZINC CHLORIDE; AND (c) SILVER – SILVER CHLORIDE, NICKEL – NICKELOUS CHLORIDE

1957 ◽  
Vol 35 (11) ◽  
pp. 1254-1259 ◽  
Author(s):  
S. N. Flengas ◽  
T. R. Ingraham
Keyword(s):  
Zinc Chloride ◽  
Dissociation Constants ◽  
Silver Chloride ◽  
Reference Electrode ◽  
Lead Chloride ◽  
Effect Of Temperature ◽  
Fused Salts ◽  
Electrode Potentials ◽  
Silver Silver ◽  
Silver Silver Chloride

Using a reversible silver – silver chloride reference electrode, described in the first paper of this series, standard electrode potentials have been established for the systems lead – lead chloride, zinc – zinc chloride, and nickel – nickelous chloride, in melts containing equimolar quantities of KCl and NaCl. Deviations from ideality were observed, and these were attributed to the formation of complexes. Dissociation constants for the complexes were calculated. The effect of temperature on the electromotive forces of the voltaic cells was also measured, and the heats of the cell reactions were calculated from the data.

Polarographic redox potentials of diazotized polycyclic aromatic amines and the absolute electrode potentials

1984 ◽  
Vol 62 (9) ◽  
pp. 1772-1775 ◽  
Author(s):  
Richard M. Elofson ◽  
Fahmi F. Gadallah ◽  
Karlo F. Schulz ◽  
James K. Laidler
Keyword(s):  
Diazonium Salts ◽  
Redox Potentials ◽  
Midpoint Potential ◽  
Electrode Potentials ◽  
Half Wave ◽  
Solvation Energies ◽  
Polycyclic Aromatic ◽  
Occupied Orbital ◽  
C Nmr ◽  
Vacant Orbital

The half-wave potentials (E1/2) of polycyclic diazonium salts as well as those of the parent hydrocarbons, the corresponding aldehydes, and the nitro compounds, when plotted against the coefficient of the energy of either the lowest vacant orbital −mm−1 or the coefficient of the highest occupied orbital +mm of the parent hydrocarbon tend toward the midpoint potential, Em, equal to −0.31 V vs. sce as established by Parker. The polarographic results are correlated with 13C nmr results with comments on solvation energies.

scholarly journals Systematic Study of Quaternary Ammonium Cations for Bromine Sequestering Application in High Energy Density Electrolytes for Hydrogen Bromine Redox Flow Batteries

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2721
Author(s):  
Michael Küttinger ◽  
Paulette A. Loichet Loichet Torres ◽  
Emeline Meyer ◽  
Peter Fischer ◽  
Jens Tübke
Keyword(s):  
Quaternary Ammonium ◽  
High Energy ◽  
High Energy Density ◽  
Ex Situ ◽  
Complexing Agents ◽  
Redox Potentials ◽  
Fused Salts ◽  
Redox Flow Batteries ◽  
Ammonium Halides ◽  
Flow Batteries

Bromine complexing agents (BCAs) are used to reduce the vapor pressure of bromine in the aqueous electrolytes of bromine flow batteries. BCAs bind hazardous, volatile bromine by forming a second, heavy liquid fused salt. The properties of BCAs in a strongly acidic bromine electrolyte are largely unexplored. A total of 38 different quaternary ammonium halides are investigated ex situ regarding their properties and applicability in bromine electrolytes as BCAs. The focus is on the development of safe and performant HBr/Br2/H2O electrolytes with a theoretical capacity of 180 Ah L−1 for hydrogen bromine redox flow batteries (H2/Br2-RFB). Stable liquid fused salts, moderate bromine complexation, large conductivities and large redox potentials in the aqueous phase of the electrolytes are investigated in order to determine the most applicable BCA for this kind of electrolyte. A detailed study on the properties of BCA cations in these parameters is provided for the first time, as well as for electrolyte mixtures at different states of charge of the electrolyte. 1-ethylpyridin-1-ium bromide [C2Py]Br is selected from 38 BCAs based on its properties as a BCA that should be focused on for application in electrolytes for H2/Br2-RFB in the future.

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