Extension of the Falkenhagen-Leist-Kelbg equation to the electrical conductance of concentrated aqueous electrolytes

1991 ◽  
Vol 36 (1) ◽  
pp. 102-104 ◽  
Author(s):  
S. S. Islam ◽  
R. L. Gupta ◽  
K. Ismail
Keyword(s):  
Electrical Conductance ◽  
Aqueous Electrolytes

Specific electrical conductance

2005 ◽  
Keyword(s):  
Electrical Conductance

Chemistry of Amino Acids with Aqueous Electrolytes

2018 ◽  
Vol 6 (3) ◽  
pp. 2347-2348
Author(s):  
Shahnawaz Mahmood
Keyword(s):  
Amino Acids ◽  
Aqueous Electrolytes

On the nature of the electrical conductance of organic polyethynylpolyarene-base semiconductors

1969 ◽  
Vol 18 (4) ◽  
pp. 856-858
Author(s):  
V. G. Kostrovskii ◽  
E. D. Litman ◽  
T. G. Shishmakova ◽  
I. L. Kotlyarevskii ◽  
M. I. Bardamova
Keyword(s):  
Electrical Conductance

scholarly journals 1.8 V Aqueous Symmetric Carbon-Based Supercapacitors with Agarose-Bound Activated Carbons in an Acidic Electrolyte

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1731
Author(s):  
Chih-Chung Lai ◽  
Feng-Hao Hsu ◽  
Su-Yang Hsu ◽  
Ming-Jay Deng ◽  
Kueih-Tzu Lu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Sulfuric Acid ◽  
Energy Density ◽  
Activated Carbons ◽  
High Energy ◽  
Aqueous Electrolytes ◽  
Alternative Material ◽  
Aqueous Cells ◽  
Acidic Electrolyte ◽  
Cycling Behavior

The specific energy of an aqueous carbon supercapacitor is generally small, resulting mainly from a narrow potential window of aqueous electrolytes. Here, we introduced agarose, an ecologically compatible polymer, as a novel binder to fabricate an activated carbon supercapacitor, enabling a wider potential window attributed to a high overpotential of the hydrogen-evolution reaction (HER) of agarose-bound activated carbons in sulfuric acid. Assembled symmetric aqueous cells can be galvanostatically cycled up to 1.8 V, attaining an enhanced energy density of 13.5 W h/kg (9.5 µW h/cm2) at 450 W/kg (315 µW/cm2). Furthermore, a great cycling behavior was obtained, with a 94.2% retention of capacitance after 10,000 cycles at 2 A/g. This work might guide the design of an alternative material for high-energy aqueous supercapacitors.

Electrical conductance for the detection of dental caries

2021 ◽  
Author(s):  
Richard Macey ◽  
Tanya Walsh ◽  
Philip Riley ◽  
Anne-Marie Glenny ◽  
Helen V Worthington ◽  
...  
Keyword(s):  
Dental Caries ◽  
Electrical Conductance

scholarly journals Behavior and properties of water in silicate melts under deep mantle conditions

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Bijaya B. Karki ◽  
Dipta B. Ghosh ◽  
Shun-ichiro Karato
Keyword(s):  
Electrical Conductivity ◽  
Molar Volume ◽  
Water Solution ◽  
Pure Water ◽  
Electrical Conductance ◽  
Water Structure ◽  
Bulk Water ◽  
Silicate Melts ◽  
Pressure Regime ◽  
Low Pressures

AbstractWater (H2O) as one of the most abundant fluids present in Earth plays crucial role in the generation and transport of magmas in the interior. Though hydrous silicate melts have been studied extensively, the experimental data are confined to relatively low pressures and the computational results are still rare. Moreover, these studies imply large differences in the way water influences the physical properties of silicate magmas, such as density and electrical conductivity. Here, we investigate the equation of state, speciation, and transport properties of water dissolved in Mg1−xFexSiO3 and Mg2(1−x)Fe2xSiO4 melts (for x = 0 and 0.25) as well as in its bulk (pure) fluid state over the entire mantle pressure regime at 2000–4000 K using first-principles molecular dynamics. The simulation results allow us to constrain the partial molar volume of the water component in melts along with the molar volume of pure water. The predicted volume of silicate melt + water solution is negative at low pressures and becomes almost zero above 15 GPa. Consequently, the hydrous component tends to lower the melt density to similar extent over much of the mantle pressure regime irrespective of composition. Our results also show that hydrogen diffuses fast in silicate melts and enhances the melt electrical conductivity in a way that differs from electrical conduction in the bulk water. The speciation of the water component varies considerably from the bulk water structure as well. Water is dissolved in melts mostly as hydroxyls at low pressure and as –O–H–O–, –O–H–O–H– and other extended species with increasing pressure. On the other hand, the pure water behaves as a molecular fluid below 15 GPa, gradually becoming a dissociated fluid with further compression. On the basis of modeled density and conductivity results, we suggest that partial melts containing a few percent of water may be gravitationally trapped both above and below the upper mantle-transition region. Moreover, such hydrous melts can give rise to detectable electrical conductance by means of electromagnetic sounding observations.

Electrical Conductance of the LiCl–KCl Eutectic Melt Containing Halides and Alkali Titanium Fluorides as Solutes

1958 ◽  
Vol 62 (12) ◽  
pp. 1479-1482 ◽  
Author(s):  
George J. Janz ◽  
C. T. Brown ◽  
H. J. Gardner ◽  
C. Solomons
Keyword(s):  
Electrical Conductance ◽  
Eutectic Melt

Cyclohexane oxidation: relationships of the process efficiency with electrical conductance, electronic and cyclic voltammetry spectra of the reaction mixture

2021 ◽  
Vol 132 (1) ◽  
pp. 123-137
Author(s):  
Alexander Pokutsa ◽  
Andriy Zaborovsky ◽  
Pawel Bloniarz ◽  
Tomasz Paczeŝniak ◽  
Dariya Maksym ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Electrical Conductance ◽  
Cyclohexane Oxidation ◽  
Process Efficiency

Electrolytes for Reversible Zinc Electrodeposition for Dynamic Windows

2021 ◽  
Author(s):  
Desmond C Madu ◽  
Shakirul M Islam ◽  
Hanqing Pan ◽  
Christopher Barile
Keyword(s):  
Aqueous Electrolytes ◽  
Zinc Electrodeposition ◽  
Metal Electrodeposition ◽  
Electronically Tunable

Reversible metal electrodeposition is a promising approach for the construction of dynamic windows with electronically tunable transmission. In this manuscript, we study a series of aqueous electrolytes that support reversible...

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