Bidhan Pandit

7 Questions 91 Answers 0 Followers

Questions related from Bidhan Pandit

What should be the active mass loading preferable for supercapacitor electrode? Is it low or high mass loading?

Mass loading of active electrode material is an important factor for calculating specific capacitance for as-synthesized electrode. Now, In case of depositing nanomaterials, the mass loading is to...

10 October 2017 2,145 25 View

What does the fast Fourier transform (FTT) of HRTEM signify about crystal structure? Is it more important than SAED pattern?

Till now I’ve used XRD and SAED for explaining crystal structure of synthesized material. There are many available explanations for XRD and SAED as well. But, I can’t find the best information...

06 June 2017 4,097 12 View

What reasonable scan rate/current density should be used whether reporting maximum specific capacitance for supercapacitor?

Specific capacitance of supercapacitor should not depend on scan rate. But it changes with scan rate practically. Specific capacitance increases with the decrease of scan rate as we all know. But,...

06 June 2017 2,372 10 View

How can we calculate specific capacitance of symmetric or asymmetric supercapacitor device from charge-discharge measurements?

we calculate specific capacitance of symmetric or asymmetric supercapacitor device from charge-discharge (CD) measurements by using the following equations, For, EDLC based supercapacitor device...

04 April 2017 1,961 11 View

How does the IR drop of charge-discharge curve for supercapacitor electrode change with applied current density? and why?

There is always IR drop of charge-discharge curve whether analysing the electrochemistry of supercapacitor electrode. It signifies for internal resistance of the electrode. But IR drop changes...

03 March 2017 6,625 17 View

If the CV of specific supercapacitor electrode includes both +ve and –ve voltage for symmetric/asymmetric device, what is the physical interpretation?

For fabricated symmetric/asymmetric device, sometimes CV includes +ve and –ve voltage. For an example, a specific electrode gives CV in the potential window from -0.4 to +0.4 V (vs. Ag/AgCl) in...

02 February 2017 5,942 13 View

What is reliable to calculate specific capacitance of supecapacitor electrode? Is it CV, CD or EIS?

We can calculate specific capacitance of electrodes from 1. Cyclic voltammetry (CV) 2. Charge-discharge (CD) 3. Electrochemical impedance spectroscopy (EIS) But if we go for the...

02 February 2017 5,618 32 View