Sachin Kumar

10 Questions 13 Answers 0 Followers

Questions related from Sachin Kumar

How to make graphene oxide film on substrate for electrochemical performance?

I am trying to deposit graphene oxide film on steel electrode via drop casting (Electrochemical synthesis of layer-by-layer reduced graphene... ) and dry it in oven at 60 C. when i put this into...

05 December 2020 966 2 View

Can i use Ag/AgCl reference electrode to electrodeposite silver?

I'm trying to electrodeposit silver nanoparticle from aqueous solution of AgNO3 via three electrode configuration. When i dip three electrode in aqueous AgNO3 solution, a whitish fluid coming out...

23 August 2020 6,983 7 View

Can i use Graphite flakes having 325 mesh particle size instead of Carbon Black or acetylene to make slurry for electrochemical performance ?

Can i use Graphite flakes having 325 mesh particle size as conductive agent instead of acetylene black or carbon black to make slurry for super capacitor electrode ?

28 July 2020 1,311 1 View

Why bubbles appear on film during Galvaostatic charging discharging?

I electrodeposited GO/PANI directly on electrode and dried at room temperature, then used it for Galvanostatic charge discharge via three electrode configuration in 1 M H2SO4. During charging...

21 July 2020 6,123 8 View

Is it necessary to do Open circuit potential before CV, Galvanostatic charge discharge and EIS for Supercapacitor electrode?

for electrochemical performance of supercapacitor electrode i am doing CV, Galvanostatic charge discharge and Potentiostatic EIS via three electrode configuration. is it necessary to do open...

20 June 2020 2,247 7 View

Which is correct formula to calculate gravimetric specific capacitance from Galvanostatic charge discharge method?

I have to calculate specific capacitance (F/g) from galvanostatic charge discharge. in electrochemical test, one is working electrode, platinum sheet as counter electrode and Ag/AgCl as reference...

08 June 2020 5,344 3 View

Doubt in Search/Match of XRD Peaks for Rietveld Refinement of Ball Clay?

In search/match of XRD peaks of Ball clay, a single peak is identified for number of clay minerals for example, peak at 2theta=21, 27, 50 and 60 degree is identified for Quartz and Microcline....

26 July 2019 9,014 9 View

Why two oxidation peaks of PANI is not well separated during electroplymerization (CV)?

Cyclic voltammetric technique is used for electroploymerization of aniline in 0.5M aniline + 0.5M H2SO4 aqueous solution. Stainless steel (1cm2), platinum sheet and Ag/AgCl are used as working...

28 January 2018 4,456 3 View

What is interpretation of cyclic voltammetry ?

i run CV with scan limit -0.2V to 1.5V in electrolyte solution containing 0.1M anilne and 1M h2so4 only for one cycle. Obtained voltammogram attached here. what should be possible interpretation?

29 April 2017 5,902 5 View

I trying to deposit PANI film on ITO by chronopotentiometry, but instrument show overload and program is stop. what are possible errors?

I trying to synthesis the PANI film on ITO electrode of area 2cm2 and counter electrode is platinum sheet of area 6.25 cm2 both are in 40 ml solution of aniline & H2SO4 prepared in 0.05:0.25...

27 February 2017 485 5 View