Tapas Das

6 Questions 27 Answers 0 Followers

Questions related from Tapas Das

Is there any basis to select carbon as negative and metal oxide or conducting polymer as positive electrode in supercapacitors?

I mean to say, what are the selection criteria for positive and negative electrodes?

17 April 2022 7,650 3 View

How Nickel cobaltite affect the crystalline structure of polyaniline?

I have made a composite of Polyaniline and Nickel cobaltite. In the composite, it has been observed that the peaks of polyaniline are shifted by 2-3 degree. It may be due to the interaction of...

23 December 2018 9,473 7 View

Can anyone demonstrate the differences among battery, fuelcells, capacitors and supercapacitors?

1. Difference in charge storage mechanism? 2. Difference in discharging mechanism? 3. Difference in basic principle of electron and ion flow?

03 November 2018 9,742 4 View

Why we need to convert current to Current density?

Suppose, I am performing Cyclic voltammetry. With the change in potential, I will get different values of current. Why we need to convert the current into current density? And how to convert...

18 September 2018 8,717 12 View

Can anyone explain the reason behind decrease in specific capacitance with increase in current (in case of supercapacitors)?

Any other reason except the less participation of electrolyte ions (with increase in current)?

10 September 2018 6,057 10 View

During the synthesis of polyaniline from aniline, PTSA, APS, the inside temperature is increasing rapidly during the addition of APS. How to control?

As the reaction is exothermic, the temperature is increasing rapidly. Is it fine or does it affect the conductivity of polyaniline? Whether emeraldine salt will be formed or not?

27 February 2018 8,875 9 View