How To fit EIS (Nyquist Plot) with Straight Line

[@izzme_ai901]

Thank you very much for this video this is very helpful

[@DrHaffeast]

You are welcome ☺️

[@MehtabAhmad-x6x]

How can we find Rct from Nyquist plot ?

[@DrHaffeast]

From the Semicircle at higher frequency region.

[@MehtabAhmad-x6x]

@@DrHaffeast can you please make a video on it ?

[@paladin1147]

What about when the warburg line is not linear more exponential or logarithmic?

[@DrHaffeast]

Refer papers for more scientific answers. Thank you

[@paladin1147]

@@DrHaffeast wow so helpful

[@jithujoseph1102]

Hello sir, can you make a video regarding the EIS fitted circuit diagram? in some literature of supercapacitors ,the diagram consists more circuit elements? Generally Rct ,Rs ,W ,C can be used to represent the fitted diagram for supercapacitors? How can we make fitted diagram using Zimpwin software?

[@DrHaffeast]

Normally I dont recomment Zimpwin. If you already have Nova just used NOVA. I already made video based on that. If you are using Versastat you can use Zimpwin. Just manually paste the value of Z' and Z'' on the Zimpwin software you can produce the fitted circuit. Later I have time I made a video regarding that.

[@tamilthendral135]

Good afternoon sir i have a doubt regarding the fitting sir can I mail u the image of nyquistic plot sir

[@riseandshine4885]

How to import data in to it, if I have .csv what should be format?

[@DrHaffeast]

NOVA can import data from different sources, in order to compare the external data to experimental data obtained with NOVA. Presently, using dedicated commands provided in the Data handling group of commands, NOVA can import data from three different sources: • Import GPES data: this command can be used to import data obtained with the Autolab GPES software. • Import FRA data: this command can be used to import data obtained with the Autolab FRA software. • Import ASCII data: this command can be used to import data from any properly formatted ASCII file. These three commands can be used in any NOVA procedure, to import data from the specified source file into a NOVA file. These commands can be embedded into any procedure, however, since these are data handling commands, they cannot be inserted into a Timed procedure. This technical note illustrates the use of these three commands to import data from different sources. If you can covert to ASCII it will be easy.

[@manashjyotidas3748]

I have tried asc file not working

[@mirferdouschowdhury9947]

Hello, This video is very helpful. But in my case, i am not getting any semicircle in Nquest plot. I am getting a straight line. Is it possible to draw circuit? It would be so nice of you, if you kindly reply

[@DrHaffeast]

Try zoom in. maybe the semicircle is too small to be notice.

[@mirferdouschowdhury9947]

Thanks for your nice comment. But my point is, if there is no semicircle( first one), is it possible to draw the circuit? NB: you get a semicircle first then a straight line. In my case the first semicircle is not available, onle the straight line is there. Need your expart opinion. Thanks in advance. B.R Ferdous, SKKU

[@DrHaffeast]

@@mirferdouschowdhury9947 Yes sir you can plot circuit even there is no semicircle. Just include the Rs and CPE/Cdl if the line is 90 degree. You can add Rs, CPE/Cdl and Warburg if the line is 45 degree. No need to plot parallel circuit, just plot series circuit.

[@DrHaffeast]

@@mirferdouschowdhury9947 refer here for more scientific explanations. www.gamry.com/application-notes/EIS/basics-of-electrochemical-impedance-spectroscopy/

[@mirferdouschowdhury9947]

Dear Mr. @Haff East Thanks a lot for your nice explanations.

[@aliaatiqah4829]

Assalamualaikum & Hello Dr, your videos help me a lot, but I want to ask you, I use NOVA the same version as you, just I want to know, it is possible to find Bodulus slope from NOVA?

[@DrHaffeast]

Waalaikummussalam. What is bodulus slope?

[@aliaatiqah4829]

Oh, I'm sorry, my mistake, I mean Bode plot, I do notice from most of journals they discuss about Bode-Phase angle plot (the Bode plot also appear together with Nyquist plot) and their slope, just I'm curious, can we find the data directly from NOVA

[@sarfarazahmad2143]

Thank you sir.

[@nurhanisahazmi9636]

May I know what does the number of iteration represent?

[@DrHaffeast]

number of iteration represent the number of dots that construct the nyquist plot...kalau no. pf iteration kurang maka dot2 untuk hasilkan Nyquist plot tu akan jauh2. Normally kita x kacau value no of iteration kat EIS. IN case of stability test you can reduce the no. of iterations to avoid your computer from hanging.

[@jithujoseph1102]

Sir ,can you make a video on how water splitting reaction can be studied using this NOVA Software?

[@DrHaffeast]

Sorry sir water splitting is beyond mine field of research.

[@jithujoseph1102]

@@DrHaffeast Its fine sir. Thank you for your valuable response.

[@crazyboys3214]

How to export fitting data and plot in origin

[@DrHaffeast]

Normally I do on nova or ZSimpWin software.

[@abdulsamisiyal5935]

which software is this?

[@DrHaffeast]

Nova software.

[@chillwfriends2852]

Hi Sir, thank you for nice video! I have some question about fitting EIS based on my current data, can I have your email sir, to ask privately?