Your programme is very useful because it saves a lot of time. I wished it was compatible with other potentiostat format and run as a tier programme rather than in matlab. Thank you for the hard work.
We made free-standing film and punched working electrodes into small circular disks. Some information is included here: ua-cam.com/video/_hvWu7gY1ck/v-deo.html&ab_channel=EChemChannel
Can you please teach us how to calculate capacitive and diffusive contribution by using data....... Looking for your kind response and video on this urgently.
@EChem Channel: Thank you very much. It is impressive. This code functions on the basis that CV data (I-V) is converted to I-t data and then analyses are performed. When I directly use the surface area of the CV curve (area in A.V) for analysis of CV data (Csp = CV curve area / (2 . mass . voltage window . sweep rate)), I get results that are slightly different from those calculated using this Matlab code, particularly at lower sweep rates. I tried averaging anodic and cathodic capacitance values calculated by this code, but they are still different. I am getting the CV data from a 3 electrode system with pseudocapacitive materials against graphite rod counter electrode and Ag/AgCl reference electrode. I would be appreciated if you can explain the source of the deviation observed here. Thank you in advance.
Hello @Payam, thanks for your question! In my experience, most differences come in two ways 1. Different cycles being used for analysis 2. The different selection of cathodic/anodic current ranges. The cathodic current range chosen by the code is shown at 01:31:04 of the video. If I were to calculate the capacity from ECLab software, I would choose a continuous integration from the end part of cycle 3 and the beginning part of cycle 4 for this integration. If it's other scenarios you may need to explain your situations more. Thanks again for your support.
@@EChem_Channel Thank you for the reply. I have used the same cycles for analysis and comparison, so the first point can be ruled out. I get your point by the 2nd point, but I am not good at coding and unfortunately, it is difficult for me to follow. I know it is too much to ask, but would it be possible for you to add a new column to two of the generated text files (I_E and C_E) for the surface area of CV curves (A vs V)? This way I can easily calculate the specific energy and power density obtained from the surface area of CV curves as well (without segregation of cathodic and anodic branches). Thank you.
![[EChem Fun] Can AI tell the charge storage mechanism correctly](http://i.ytimg.com/vi/JadqkrNB7MQ/mqdefault.jpg)
Sorry for the super long video. Hope it is useful for some of our viewers. If you have questions, please post them in the comment section. Thank you!
Your programme is very useful because it saves a lot of time. I wished it was compatible with other potentiostat format and run as a tier programme rather than in matlab. Thank you for the hard work.
Thank you. I wish I will have time one day to get data from other manufacturers and make a standalone program.
very good. I would like to see the practical experiment you guys do and how you prepare the working electrode. Thanks
We made free-standing film and punched working electrodes into small circular disks. Some information is included here: ua-cam.com/video/_hvWu7gY1ck/v-deo.html&ab_channel=EChemChannel
Can you please teach us how to calculate capacitive and diffusive contribution by using data.......
Looking for your kind response and video on this urgently.
Hi there, there are already some videos on UA-cam covering that particular analysis. Sorry for getting to it so late.
Instead of mpt format can we use any other format like excel or notepad?
You can. You will need to adjust the input part of the code.
@EChem Channel:
Thank you very much. It is impressive.
This code functions on the basis that CV data (I-V) is converted to I-t data and then analyses are performed. When I directly use the surface area of the CV curve (area in A.V) for analysis of CV data (Csp = CV curve area / (2 . mass . voltage window . sweep rate)), I get results that are slightly different from those calculated using this Matlab code, particularly at lower sweep rates. I tried averaging anodic and cathodic capacitance values calculated by this code, but they are still different. I am getting the CV data from a 3 electrode system with pseudocapacitive materials against graphite rod counter electrode and Ag/AgCl reference electrode. I would be appreciated if you can explain the source of the deviation observed here. Thank you in advance.
Hello @Payam, thanks for your question! In my experience, most differences come in two ways
1. Different cycles being used for analysis
2. The different selection of cathodic/anodic current ranges. The cathodic current range chosen by the code is shown at 01:31:04 of the video. If I were to calculate the capacity from ECLab software, I would choose a continuous integration from the end part of cycle 3 and the beginning part of cycle 4 for this integration.
If it's other scenarios you may need to explain your situations more.
Thanks again for your support.
@@EChem_Channel Thank you for the reply. I have used the same cycles for analysis and comparison, so the first point can be ruled out. I get your point by the 2nd point, but I am not good at coding and unfortunately, it is difficult for me to follow. I know it is too much to ask, but would it be possible for you to add a new column to two of the generated text files (I_E and C_E) for the surface area of CV curves (A vs V)? This way I can easily calculate the specific energy and power density obtained from the surface area of CV curves as well (without segregation of cathodic and anodic branches). Thank you.
@@payam1597 Hello, sorry for the late reply... if you follow the last part, we used a different way to generate energy and power density.