I obtained an EIS data when I am doing research on biopolymers for corrosion inhibition. But I can not find a good fit of equivalent circuit. Could any body help me with it?
I have attached the data file in which the first column is the frequency, the second column is the Z' and the third column is the Z''.
Xin Liu An analogous circuit is a theoretical circuit that preserves all of the electrical properties of a particular circuit in electrical engineering and research.
These tutorials might be helpful further:
1. https://www.youtube.com/watch?v=pk0Qoji50Zc
2. https://www.youtube.com/watch?v=YfLDiMY4Vpo
3. https://www.youtube.com/watch?v=knJUV46oMXU
Xin Liu
Could you provide more details about your surface morphology ? ... Is it only a metal covered with this biopolymer ? ... The choice of an equivalent circuit depepnds strongly on what is happening on your surface (electrochemical, chemical and physical phenomena) and the state of your surface (porosity, coating, protected and unprotected areas ... ). Your data is corrected for the ohmic drop or not ?
hi,
In electrical engineering and science, an equivalent circuit refers to a theoretical circuit that retains all of the electrical characteristics of a given circuit.
Why do we need EIS?
It is for multiple reasons quite popular. One reason is that EIS allows separating the influences of different components that means the contribution of the electron transfer resistance, double layer capacity, etc.
steps - make an equivalent circuit
for more info:
https://www.metrohm.com/en_in/applications/application-notes/autolab-applikationen-anautolab/an-eis-007.html
Best wishes..
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