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CheesyG

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- TL;DR Summary
- How can I determine the electric field distribution in an electrolyte solution when applying a given potential to electrodes?

Hi there,

How can I determine the electric field distribution from a planar electrode? The known parameters are potential applied to the electrode, ionic strength and dielectric constant of the medium. (E.g. for the most simple case 0.5 mM NaCl in water)

I'm having difficulty finding a straightforward explanation to do this. I'd want to account for the potential drop across the Stern layer and the exponential decay of potential in the diffuse layer to get a complete picture of electric field distribution. BC is potential --> 0 as x --> infinity.

One case would be for an infinite planar electrode, another would be for a small 100nm planar electrode in a cavity.

How can I determine the electric field distribution from a planar electrode? The known parameters are potential applied to the electrode, ionic strength and dielectric constant of the medium. (E.g. for the most simple case 0.5 mM NaCl in water)

I'm having difficulty finding a straightforward explanation to do this. I'd want to account for the potential drop across the Stern layer and the exponential decay of potential in the diffuse layer to get a complete picture of electric field distribution. BC is potential --> 0 as x --> infinity.

One case would be for an infinite planar electrode, another would be for a small 100nm planar electrode in a cavity.