Which is best in CPE and GCE for film depositon and why?

More Pradeep Kumar Brahman's questions See All

Reduction of H2O2 at Glassy carbon electrode using Cyclic voltammetry?

I am trying to reduce H2O2 at GCE and other modified electrodes using cyclic voltammetry. But I am not getting well defined reduction peak. Can anybody tell what could be the reason?

09 October 2016 5,100 5 View

In pH-meter does the glass electrode acts as anode or cathode?

If it is acting as cathode then why?

07 August 2014 3,222 3 View

How can we determine Fe(II)/ Fe(III) in a porphyrin ring?

06 July 2012 3,437 2 View

What is the indication of the absence of peaks in Methanol electrooxidation CV curves ?

I have several question regarding the MOR; hope anyone help me better understand. 1- in CV using (KOH+MEOH) what is the indication of absence of the redox peaks? shouldn't they exist as a sign...

28 February 2021 4,851 8 View

Have anyone checked before Cyclic voltammograms of intial ITO substrate and E-teck?

As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...

23 February 2021 3,175 3 View

How to Study a proton NMR of Graphene prepared by Electrochemical Exfoliation technique?

I performed a Proton NMR of graphene powder prepared by electrochemical exfoliation technique. It shows some peaks. But I can't understand it.

21 February 2021 8,947 3 View

How to predict the reaction pathway for electro organic synthesis?

Can anyone recommend some any software/models available that can predict substance reactivities and the reaction yield under a specific set of reaction conditions process and proposing pathways to...

17 February 2021 2,383 3 View

Selecting referencing electrodes for electrochemical experiment?

I have several questions, What reference electrodes is commonly used for aqueous electrochemical systems? What reference electrodes is commonly used for electrochemical systems which used...

06 February 2021 6,389 5 View

What are the factors on which exchange current density of an electrode depends, and how can they be predicted?

While surface roughness is an obvious factor, this is not what is exactly asked. Rather, periodic variation of exchange current density (of an electrode) with solution chemistry (of electrolyte)...

30 January 2021 4,886 5 View

Why sometimes current- voltage plot in chemiresistors/ FET does not pass through the origin?

I am trying to measure resistance from I-V curve from a chemiresistor/ FET sensor with a keithly sourcemeter. The substrate is soaked/ wet with protein and phosphate buffer only. But the I-V line...

24 January 2021 8,009 3 View

What is the difference between Pt(100), Pt(110) and Pt(111)?

For example: In an electrochemical cell utilising a platinum (Pt) anode, what is the difference and what kind of implications would be expected from using either Pt(100), Pt(110) or Pt(111)?

20 January 2021 309 5 View

Electroactive surface area of bare and the synthesized material?

For electrochemical sensors, the electroactive surface area (ESA) show higher value for the working material as compared to bare (reported in several papers). My bare electrode is FTO and working...

17 January 2021 7,220 3 View

Colorimteric and enzymatic method ?

First of all, thank you for your consideration about this question. I've been working on development of in-vitro diagnostic medical device as research engineer since 2013. Especially, my major is...

14 January 2021 3,885 4 View

Gururaj Kudur Jayaprakash

I feel GCE is best option for acidic supporting electrolytes

Daniel Martín-Yerga

Maybe, it's because using CPE you don't have to worry about cleaning steps between measurements, you just do other electrode easily. A GCE is a tool that you need reutilize, then you need to clean very well between measurements (or applications).