Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Three Electrode System: Defining Potentials

Please login with a confirmed email address before reporting spam

Hello, I am trying to model a three electrode set-up but I am struggling in how to define the applied potentials at my WE, RE, and CE.

I will be running both EIS and CV with my design, and I would like to understand the physics in context to my results. I struggle with defining the electrode potentials with respect to each other based on what the potentiostat applies during measurements.

Currently, I am applying a 10 mV potential across the WE and RE (5 mV @ WE and -5 mV @ RE) and grounding the CE. However, when I plot the current density, it seems that I am seeing large currents between my WE and RE. I know this should not be the case because the potentiostat inputs a high impedance at the RE so that very little current will pass. Any advice would be extremely helpful.

0 Replies Last Post 2016年8月30日 GMT-4 11:42
COMSOL Moderator

Hello Hunter Stevenson

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.