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.

Disolving silver ions from an silver electrode into flowing water.

Please login with a confirmed email address before reporting spam

Hello Everyone!

I would like to know which physics modules I need to apply to track the concentration of silver ions through a pipe section. The silver ions dissolve in water by ionization (applying current to a silver electrode). I would like to make the current or the voltage a parameter for the concentration of silver ions. I was planning to use the "Particle Tracing for Fluid Flow" or the "Transport of Diluted Species", but which these modules I can not include the applied current to the electrode as a parameter.


1 Reply Last Post 2 janv. 2019, 06:02 UTC−5

Please login with a confirmed email address before reporting spam

Posted: 6 years ago 2 janv. 2019, 06:02 UTC−5

Yes you can. Use flux boundary condition on the electrode:

Flux = I/F

I = current (A) F = Faraday constant = 96500 As/mol

Hence, Flux = ( ) mol/s.

Lasse

Yes you can. Use flux boundary condition on the electrode: Flux = I/F I = current (A) F = Faraday constant = 96500 As/mol Hence, Flux = ( ) mol/s. Lasse

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.