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Since AC can be capacitively coupled to the solution, metallic electrodes don't need to contact the solution -- they can be outside an insulating container, e.g., glass or PTFE, avoiding introducing metal ions. At moderate AC frequencies, ions won't migrate an appreciable distance in one direction before returning to that position on the opposite half of ...


4

@MatNX, as you state, "sensitive technology and high temperatures are typically a very bad match." However, there is no magic way to "make" cold, only to move heat from one location to another. Presumably, since you state you have an engineering background, you're familiar with the laws of thermodynamics. Any heat you remove from an IC ...


3

Instead of halides, consider hydroxides A eutectic of sodium hand potassium hydroxides melts at 170°C. See: Sergei Devyatkin. "Interaction of Oxides and Molten Alkalis, Products of Reaction and Application", Sustainable Industrial Processing Summit & Exhibition, Volume 7: Ionic Liquids & Energy Production, Edited by Florian Kongoli, Flogen, ...


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The answer is yes, you will get a potential difference of 0.2-(-2.37) = 2.57 V, if Mg and carbon filament are used as the electrode materials and connected into one circuit. The third digit after the decimal is removed, because different resources give slightly different values. From our own experiments using glassy carbon, its open circuit potential is -0....


2

Let's take as an example a $1$ M $\ce{CuCl2}$ solution in water. If two platinum or charcoal electrodes are dipped into this solution, they will not react with this solution. If a small voltage (< $\pu{1.02 V}$} is applied on the electrodes, nothing happens. If now a higher continuous voltage (>$1.02$ V) is applied, electrolysis proceeds. At the ...


1

The rate of electrolysis is the amount of copper $n\ce{(Cu})$ deposited at the cathode per second (in mol/s). This amount $n\ce{(Cu})$ is proportional to the time $t$ and to the current $I$ (in Amperes) according to the Faraday's law : $n = It/zF$. Now the current $I$ depends on the voltage $U$ according to Ohm's law : $I = U/R $ where $R$ is the resistance ...


1

There are electrode reactions controlled by electron transfer(slow ones) or by diffusion(fast ones). Depending on choice of forced electrode potentials, electrolyzer geometry and ion concentration, many reactions can be arranged to be electron-transfer limited or diffusion limited. If the cathode potential is decreased below its equilibrium potential, the ...


1

Anions travel away from a cathode just partially, until there is built the counter potential gradient due charge displacement. When both gradients cancel each other, the migration stops. That happens when there is no ongoing electrolysis, e.g. if too small external voltage is applied. When there is ongoing electrolysis, the balance is continuously disturbed, ...


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