Overpotential Definition
In the user guide for the electrochemistry branch, overpotential is often defined as the difference between electric and electrolyte potential and the reversible potential, i.e. eta = phi_s - phi_l -...
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There are different kinds of overpotentials. The most important and usual are 1. activation overpotential 2. concentration overpotential The first one is the deviation from the reversible potential at...
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Thank you for your reply. However, what I want is the exact origin/reference for this particular expression eta = phi_s - phi_l - E_eq Thank you anyway.
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Are there any comsol models that looks at strictly distributing components of these Overpotential as you change the adjustable parameter?
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Dear Lasse Murtomäki, Would you please guide me what is the exact meaning of “the electrode potential (phi L)” and “electrolyte potential (Phi S)”? Let me make my question clear: I am trying to model...
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I am using the "Tertiary Current Distribution, Nernst-Planck", there I do use an "Electrolyte-Electrode Boundary Interface". For the kinetics you do need eta, which is used for example in the...
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Dear all phi_l is the Galvani potential of the liquid phase and phi_s is that of the solid phase, viz, the electrode. The theoretical basis of phi_s is in the Fermi levels where electrons reside, but...
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hello, I am as well facing the same confusion, I am trying to model half cell reaction (Anode) and get the activation overpotential or anodic polarization. I . Can anybody guide me on 1. if I am using...
View ArticleRe: Overpotential Definition - same issue
Hi Use the difference phis - phil and subfract for Eeq where no current is flowing. In the current-voltage simulation, choose Electric potential. Lasse
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