Muhammad Sajjad

13 Questions 48 Answers 0 Followers

Questions related from Muhammad Sajjad

How we can calculate the the area of a specific peak from CV curve?

Hi everyone, I want to know how we can calculate the area of a peak from the CV curve as shown in the attached image.

09 June 2020 3,437 1 View

Why there is a straight line in my CV curve?

I am scanning CV curves using 3M Na2SO4 electrolyte in Ag/AgCl, Pt mesh and Phos-COF as my positive electrodes, respectively. Every time it gives me straight line at 0. Why this happens?

16 January 2020 4,571 0 View

What is the advantages of electrode material with multiple oxidation states for supercapacitors?

with mulatiple oxidation states is one of the important factor for high energy storage. my q for high energy storage. my querry is, w

10 October 2019 4,033 1 View

How we can explain if the CV loop is not closed? what's the science behind this? any reference, comments and suggestions?

CV loop is not closed. How to explain this?

18 August 2019 9,358 4 View

For supercaps electrode, if my active material mass is 3 mg ans area of my sample is 2*3 cm-2. what will be my current density to apply?

How we can determine the proper value of current density that i should apply to this system? What is the general procedure to select suitable current density to that system which i mention above....

10 March 2019 1,887 2 View

What does my CV describe pseudocapacitive/EDLC behavior or both?

I am using NiCo2S4/CNT compoiste with carbon nanotube paper as my current collecttor for the ASC device in KOH electrolyte. which behavior my CV curves shown and is its OK? attached is my CV curve...

16 February 2019 6,628 4 View

Which procedure that I suppose to run for supercapacitor capacity determination and cycle efficiency?

I want to know about the capacity retention of my sample what procedure/technique should be follow so that i can get the graph between capacity retention vs number of cycles using CHI660d...

15 February 2019 5,020 2 View

Why in CCD the potential is equal or less than the CV potential window?

what's the reason behind this? if potential reached higher sthan the CV potential window than what does it means? if less OK as i can see in many reports Thank you in advance for your comments,...

08 February 2019 239 0 View

How calculate the following mass ratio for my electrode preparation ?

I am using acetylene black: active material: PTFE with 10:85:5. Now my question is how i can calculate the mass for this ratio so that i can make my electrode with this combination. (how can i...

13 January 2019 1,449 0 View

Why the current in CV is not started from 0 which is usually from 0 but in my case it is from 0.02A why is that?

I am using 6M KOH electrolyte and my active material is Nickel cobalt sulfide/CNT composite on Ni form with Ag/AgCl is reference electrode and Pt mesh is current collector. My question is " CV...

11 September 2018 8,793 3 View

Why there is current overshoot in the CV curves of nickel cobalt sulfide?

I am using 6MKOH electrolye for NCS and i observed abrupt current shoot when increases the scan rate above 10 mV/s. why is this? Your answer will be highly appreciated and w'l be helpful for my...

21 April 2018 5,334 0 View

Hello, can anyone help me to interpret YBCO behavior in the following graphs?? why it first decresesbelow 300K and then increses ypto 160K???

Kindly suggest me any theory or explanation behind this behaior of YBCO????? Room temperature reflectance experiment. How can i explain the following behavior od YBCO ????? any suggestion or...

29 April 2017 1,159 3 View

Why BCS theory of superconductivity can't explain the behavior of HTSC like YBCO ???

thank you in advance ...

01 January 1970 8,689 26 View