Which are the common binders used along with our materials to fabricate working electrode in super capacitors? What can be their possible roles?

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How to calculate Areal Capacitance?

I have calculated specific capacitance of 200 F g-1. Now I wish to calculate Areal Capacitance. What is the formula? Electrodes: working Glassy carbon electrode of 3mm diameter (0.0707...

05 June 2019 2,190 5 View

How porosity and surface area affect supercapacitor performance (and other electrochemical applications) ?

Usually, high surface area and porosity are reported to be the primary reasons for good electrochemical sensing and supercapacitor performance. Please explain what exactly happens with high...

05 June 2019 5,069 6 View

What are the parasitic reactions (between electrode and electrolyte), which affect coulombic efficiency of Supercapacitors?

Please give some details. Why it happens in particular for battery like electrodes?

05 June 2019 9,606 2 View

Is it necessary that a composite of metal oxide and rGO should always exhibit better energy storage properties compared to only metal oxide and rGO?

Kindly shed some light on it. In my case, the rGO alone is providing better supercapacitor properties than composite.

03 April 2019 8,984 4 View

How to make composite using ultrasonication, when one of your constituents is Grphene? What should be the ratio of both participating materials?

Suppose, I want to make a composite of MOF and graphene. I wish to study the effect of relative content of participating constituents on the electrochemical properties. How to choose the ratio for...

05 June 2018 654 5 View

Expected Impact factor of Chemistryselect ?

New journal of Wiley-VCH

31 December 2017 8,199 51 View

How to differentiate soild-state thermolysis, calcination and annealing ?

Can solid state thermolysis and calcination be called same at any particular conditions ?

07 August 2017 3,927 1 View

How to determine linear range of a biosensor ?? Which is the easiest and best method ??

There are various methods to determine it. Can anyone show with example their suitable employed method ??

05 June 2017 4,755 1 View

Why in some cases Binder free electrode works well (stable ~95% after 1000 cycles) during continuius charging discharging of supercapacitor test ?

I am trying one coordination polymer as electrode material on glassy carbon electrode. It is showing good stability. What can be the reason?

05 June 2017 4,335 7 View

Among reduced graphene oxide (rGO) and nitrogen dooped reduced graphene oxide (NRGO), whose conductivity is more and why?

I have observed higher values of supercapacitance of NRGO than rGO, which has better dispersion than rGO. But what can be the possible reason of higher supercapacitor performance? Has it something...

02 March 2017 452 2 View

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

How does charge on working electrode changes with rising potential?

During performing CV of a GCE or modified GCE, we rise the potential in the first half of the cycle and reduce it in reverse half. During the first half, what is the nature of charge on GCE or...

25 February 2021 7,994 3 View

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 3 View

How does elongation affect the resistance of an electrode?

What are the testing rate for electrodes recommended by ASTM for cochlear implants. I am currently doing the 15mm/min elongatio testing.

22 February 2021 1,515 1 View

Is that possible to do an impedance measurement without FRA module?

One of my colleagues said, "the impedance you can measure with the three electrodes and with the specific sequence varying the frequency" Is it possible to configure the potenciostat without the...

21 February 2021 418 2 View

Do you know this error? The experiment was stopped by a potential overload on Vs (auxiliary electrode)?

Hello everyone Do you have any information about this error 'The experiment was stopped by a potential overload on Vs (auxiliary electrode)' in Origamaster software? I tried everything possible,...

19 February 2021 3,152 7 View

Which compound is getting oxidized during bulk electrolysis with TFAA?

The experiment is really simple. When I do a bulk electrolysis with 1% TFAA (ACN solution) to get dihydrogen, what is going to be oxidized? (working electrode graphit, counter electrode platinum,...

18 February 2021 4,430 1 View