Hi Sunil,

It's quite simple, import the data in origin. If you want to extract information about electrochemical behaviour of your electrode material, use software for equivalent circuit.

Best of luck

Subrata

https://www.researchgate.net/post/Does_anyone_know_about_a_data_fitting_procedure_in_electrochemical_impedance_spectroscopy_to_find_resistance_and_capacitance#551e5ad6ef9713a7248b45bf

Thank you Ghosh.....for nice answer

Is it possible in origin or I have to use different software?

I run the exp and got data in excel format for Z vs Z'' by instrument...Now what I have to do...?

Some time peoples are drawing eq circuits ...what it means?

I am new in this area, plz explain..!!!

I already mentioned in the previous link that how to fit equivalent circuit from graph. If you not able to get it, kindly send  your excel data? [I'm using ZSimDemo, I don't know about other software, but you can get the instruction] I am asking you to read the existing discussion in RG.

I'm not expert on this area, but I slowly started to gain the knowledge and it is continuing. Impedance spectroscopy is very useful to understand the behaviour of electrode materials. To understand that, Nyqust plots used to fit by some software to get equivalent circuit like L-C-R ckt. The equivalent circuit completly depends on youe active material and how it is behaving under electrolyte. Using equivalent ckt, you can conclude which component is reponsible for what. So it will give you how diffusion process takes place or ion/electron transport and many other physical phenomena.

Thanks for answer .....give me your email id please

@Sunil

For information you should look at http://www.gamry.com/application-notes/basics-of-electrochemical-impedance-spectroscopy/

This will help you to get a basic understanding

Dave

Z (imaginary) vs Z(real) graph is the Nyquest plot. for basic study, link shared by @Dave Loveday will be very handy.

Thanks you Ghosh, Dave and Tabish for  nice information...

Hi Sunil,

you can contact through

[email protected] or [email protected]

Ok Thanks

Hi guy

I suggest you have a good look the instructions of Zsimwin,It will help you  have a deep understand of the EIS,  if you do not one, you can email me [email protected] , i will send u. 

nyquist plot graph could obtain using origin software， equivalent circuit could fit using Zview or zsimpwin software

Thanks Wen....

I have different samples of polyaniline-graphene with different doping level and graphene loadings. I want to study it for super capacitors applications

Please can you tell me that is there any screening parameters, so that I can select only few of them for super capacitors studies

if you would like calculate capacitance, please refer my paper(J Solid State Electrochem (2012) 16:3725–3738), using equation C = (2πfZim)−1, you can obtained different capacitance polyaniline-graphene with different doping level and graphene loadings, of course, you can aslo ontain other related data by fiting using Zview or zsimpwin software

THANK YOU SO MUCH

Hi Sunil,

How the things is going on?

Based on my experience in couple of months, EIS analyser spectra is more handy that ZSimpWIn. In EIS analyser, you can fit the data and also simulate the data. Another advantage is that you can edit any equivalent circuit out of given circuit.

Hope that,  this information will help you to get better and appropriate fit with your system.

Best of luck

Subrata

Thanks for your email.

We collaborate this study @ IIT Madras.