Home > Community > What are the possible reasons for Shifting of Nyquist plot from...
Upvote

23

Downvote
+ Electrochemical analysis
+ Inorganic materials
Posted by
Mark Goodwillie

What are the possible reasons for Shifting of Nyquist plot from...

David Vanderschel  Follow

Thank you very much to all

More

Upvote

VOTE

Downvote
Charles Zellstines  Follow

Dear, 
I agree with the above response of Dr. Madani
http://www.bio-logic.info/assets/comm_tutorials/Impedance_II_corrosion.pdf

More

Upvote

VOTE

Downvote
Daniel Chetcuti  Follow

Dear Joshi
your equivalent circuit may be a resistance  R1  in serie  with  R2 // C 

More

Upvote

VOTE

Downvote
David McKay  Follow

The shift from the origin is due to the solution resistance. If you have higher resistance, you would get more shift from origin.
concerning the  RC circuit, If you have pure semicircle, you could use the simplified Randles circuit, which is mentioned above. If you have mixed kinetic and diffusion control, you should add a Warburg impedance.

More

Upvote

VOTE

Downvote