Thanks for sharing the JMCA paper. It helped me a lot. I'd like to suggest a minor correction. At 3:47 while you were talking about figure b, you were actually describing figure c. Figure c has the blunt CV curve with ESR (series resistance). Figure b has the slant CV curve due to EPR (parallel resistance)
Kindly do make a detail GCD tutorial about how to select different mass densities relative to different current values for sample on which GCD could be operate? How to calculate specific capacitance from GCD curves? All tutorials are very informative.
If shape of a CV has inhomogenous rectangular shape can we said that it has EDLC ? Your all videos are amazing and very helpful for me that I am new to this work so can I get your mail ID something ?
If anyone can help me with a reason that area calculated from a CV curve in origin give large value for one sample and small value for other sample(e.g 0.004 & 3.455). Also it is obseverd that more conductive sample show small area under curve value comparitive to low conductive sample. Any reason? Logical response will be highly appreciated.
In the origin where you calculate the area enclosed by the cyclic voltammogram. Do you calculate the absolute are for both cases where you have come across a big difference in calculated area. Can you visually see what the numbers are saying, i mean the visual assessment of the areas eclosed by the two CV. And if you were calculating mass or even areal specific capacitance from CV for a single electrode in a three electrode configuration. In the formula for specific capacitance, did you divide by 2? It depends on the nature of your conductive materials, whether you have used binders to make slurry or else probably you have attempted direct growth of active materials onto your current collector. By now you must have found out justification.
What's the relation between specific capacitance and scan rate? Could you specify the difference between linear,areal,volummatric and gravimetric capacitance? Thank you!
Hi. Once the the specific capacitance is calculated, the areal and volumetric capacitance can be obtained by knowing the electrode surface and electrode density.
I guess you mean the electrochemically active surface area (ECSA), not ESCA as Electron Spectroscopy for Chemical Analysis :p. For ECSA, you will want to know the capacitance per area of your material in a particular electrolyte, then use the capacitance from CV divided by that value to get your ECSA.
完美解决了我的问题，谢谢老姐
Thanks for sharing the JMCA paper. It helped me a lot. I'd like to suggest a minor correction. At 3:47 while you were talking about figure b, you were actually describing figure c. Figure c has the blunt CV curve with ESR (series resistance). Figure b has the slant CV curve due to EPR (parallel resistance)
Thanks for pointing it out!
❤ Thanks for the great video
Kindly do make a detail GCD tutorial about how to select different mass densities relative to different current values for sample on which GCD could be operate? How to calculate specific capacitance from GCD curves? All tutorials are very informative.
We will try
really nice content plz keep on. thank u
It is really good. Keep it up ..❤️
Good information, How to calculate coulombic efficiency of the capacitor from the tilted CV where Rp or Rct is present in parallel to capacitance?
how to find diffusion coefficient when we have multiple oxidation peaks?
It's nice video. question
For these types of answers, we can talk about redox reactions, or it is not necessary or it is not the right subject.
what can be said if the area calculated from a CV curve is 0.001. What can we talk about exactly :conductivity or other factors .
Do you have some video on calculating active electrochemical surface area?
If shape of a CV has inhomogenous rectangular shape can we said that it has EDLC ? Your all videos are amazing and very helpful for me that I am new to this work so can I get your mail ID something ?
If anyone can help me with a reason that area calculated from a CV curve in origin give large value for one sample and small value for other sample(e.g 0.004 & 3.455). Also it is obseverd that more conductive sample show small area under curve value comparitive to low conductive sample. Any reason? Logical response will be highly appreciated.
I use EC-lab to integrate the area of i-t curve, and the result looks reliable so far.
In the origin where you calculate the area enclosed by the cyclic voltammogram. Do you calculate the absolute are for both cases where you have come across a big difference in calculated area. Can you visually see what the numbers are saying, i mean the visual assessment of the areas eclosed by the two CV.
And if you were calculating mass or even areal specific capacitance from CV for a single electrode in a three electrode configuration. In the formula for specific capacitance, did you divide by 2?
It depends on the nature of your conductive materials, whether you have used binders to make slurry or else probably you have attempted direct growth of active materials onto your current collector. By now you must have found out justification.
Hi tnx for sharing information.how can I calculate conductivity of electrode or electrolyte?
Thank You very much...
Welcome. :)
Can you please explain, why you putted more than half part of the graphs (I vs. v) towards right of the origin?
Of course it can be in the negative window as well. Here is just schematics.
I don't hv access to the JMCA paper mentioned in the video, so it would be grateful if you provide the pdf file of published paper
Sorry, it's not possible to share pdf through RUclips.
What's the relation between specific capacitance and scan rate? Could you specify the difference between linear,areal,volummatric and gravimetric capacitance? Thank you!
Hi. Once the the specific capacitance is calculated, the areal and volumetric capacitance can be obtained by knowing the electrode surface and electrode density.
How to find ESCA from Cv graph? If you have any video then let me know
I guess you mean the electrochemically active surface area (ECSA), not ESCA as Electron Spectroscopy for Chemical Analysis :p. For ECSA, you will want to know the capacitance per area of your material in a particular electrolyte, then use the capacitance from CV divided by that value to get your ECSA.
I have exams in this days but I still understand this😫
Good luck with the exams!