Experimental Evaluation of Liquid-Junction Potential

“…The pH meter was calibrated by two aqueous standard of pH 4 and pH 7 at 25°C due to lack of standard buffer solutions for butanol. As the operational pH; directly read from the pH meter, cannot exactly specify the nonaqueous solution pH, suspension acidity in terms of the hydrogen activity; paH (respect to aqueous solution), and

{pa}_{normalH}^{*}

(respect to nonaqueous solution) were deduced using the following equations, taking

Δ E_{normalj} = - 0.09 V

and

{log}_{m} {normalγ}_{normalH} = 4.7

for butanol:

{pa}_{normalH} = pH - \frac{Δ E_{normalj}}{0.05916}

{pa}_{normalH} = {pa}_{H}^{*} - {log}_{m} {normalγ}_{normalH} \Rightarrow {pa}_{H}^{*} = pH + 6.22

…”

Section: Methodsmentioning

confidence: 99%

Electrophoretic deposition of titanium nitride coatings

Kavanlouei

Akbari

2018

J Am Ceram Soc

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Electrophoretic deposition of the titanium nitride (TiN) coatings from suspensions prepared by dispersion of TiN particles in triethanolamine (TEA) containing butanol medium was studied. Effects of the TiN particles concentration (C TiN ) on the weight of the deposited coatings, triethanolamine concentration (C TEA =0.25, 0.5, 0.75, and 1 mL/L) on the Zeta potential of the TiN particles, suspension electrical conductivity and pH, as well as effects of the deposition voltage (V d =60, 90, and 120 V) and time (t d =1, 2, and 3 minutes) on the microstructure and thickness of the deposited coatings were investigated. Variations in deposition current density, effective deposition voltage, electrical resistance, and deposited coating weight versus deposition time were recorded. The morphology of the as-dried coatings was studied using Scanning Electron Microscope (SEM). The results indicated that by increasing the C TiN the weight of deposits increases linearly up to 40 g/L. For suspensions containing C TiN =40 g/L, the optimum C TEA is obtained to be 0.5 mL/L leading to Zeta potential of 43.25 mV. Uniform and crack-free as-dried coatings obtained at V d and t d of 90 V and 2 minutes, respectively. K E Y W O R D Scoating, electrophoretic deposition, microstructure, sticking factor, titanium nitride

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“…The potentials of other electrodes in different media should be related to their redox potential. Later, other systems were also proposed for the same purpose , including metalloorganic compounds of iron and cobalt [854][855][856][857] (for example, the ferrocene/ferricenium and cobaltocene/cobalticenium systems). But because the solvation energy apparently changes if the solvent nature is altered, even for these ions, the application of these systems as a potential standard leads to some error.…”

Section: A General Remarksmentioning

confidence: 99%

Catalytic and Kinetic Waves in Polarography

Mairanovskii¹

1968

129

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Experimental Evaluation of Liquid-Junction Potential

Cited by 41 publications

References 12 publications

Solvent Effect on the Redox Characteristics of Different Thiadiazoles in Nonaqueous Media

Solvent Effect on the Redox Characteristics of Different Thiadiazoles in Nonaqueous Media

Electrophoretic deposition of titanium nitride coatings

Catalytic and Kinetic Waves in Polarography

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