Why did my peak shifts to higher potential after successive addition of analyte in cyclic voltammetry?

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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 2,442 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 5,261 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 9,804 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 9,197 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 868 5 View

Expected Impact factor of Chemistryselect ?

New journal of Wiley-VCH

31 December 2017 8,575 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 4,145 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 4,953 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 4,520 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 655 2 View

Melt curve problem in qPCR?

Do these peaks in the curve indicate primer dimer or non-specific products?

01 August 2024 7,466 0 View

Is artifacts in XPS possible to build high deviation in binding energy larger than 5 eV??

Hello. Thanks for your consideration to see my question. Recently, I conducted XPS anaylsis of g-CN that is prepared from thermal polycondensation of DCDA, so-called conventional bulk-g-CN,...

30 July 2024 9,824 2 View

How to improve peaks separation in HPLC?

Hi everyone, I'd like to better separate two close peaks coming from a bioconversion sample, I'm currently using a C18 KromaPhase 4,6mm Ø.I. SCHARLAU, particle size (µm): 10, pore size (Å): 100,...

30 July 2024 435 3 View

How to determine the charge passing during a cyclic voltammetry?

Dear All, here is my question: if I have a 15-scans cyclic voltammetry performed with PalmSens, how can I obtain the charge passed during the process? Hopefully avoiding integrations,...

29 July 2024 3,733 5 View

Why semicircle of nyquist plot is not complete?

While I am doing HER, I noticed that nyquist plots of Electrochemical Impedance Spectroscopy (EIS) is not complete. Will it affect for the Linear Sweep Voltametry (LSV) data? However, I can found...

26 July 2024 7,542 4 View

What binder would be the best choice to modify glassy carbon electrode with a 2D Material like Graphene or MXene?

I am trying to drop cast 2D Materials on Glassy Carbon Electrode for Cyclic voltametry and EIS purpose. What would be best binders to use?

23 July 2024 5,776 2 View

What does an additional peak in FTIR between 3100 and 3300 nm affect the quality of the material, benzethonium chloride USP??

I do not know much about FTIR! The material Benzethonium Chloride USP was compared to a reference standard in regards to FTIR, as per the USP testing: Identification B. Infrared absorption (FTIR),...

16 July 2024 6,918 7 View

What is the correlation between IQ and job performance (measured by annual salary)?

I am struggling to attain multiple research articles, so far, I have looked at the Swedish longitudinal study, they have good depth and reliability. I was thinking of looking into twin studies to...

15 July 2024 3,737 1 View

Can you please help me with a cyclic voltammetry?

Hi, I was wondering if you could help. When I take CV in GC electrode with the solution of InCl3 0.01M + citric acid 0.01M + NaCl 0.1M, I get such a graph, how can I correct it so that the...

11 July 2024 5,024 1 View

My Cyclic voltammetry curve doesn't show cathodic peak of Cu2+ to Cu+. how to solve this problem?

I performed CV of Cu-MOF in a buffer solution of pH 8, and we did not find any peak corresponding to Cu2+ to Cu+. What is the reason behind this? Please give your valuable suggestions.

08 July 2024 2,388 4 View