Electrochemistry

Electrochemistry is a branch of chemistry that studies chemical reactions which take place in a solution at the interface of an electron conductor... | Contact experts in Electrochemistry to get answers

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Questions related to Electrochemistry

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...

01 March 2021 5,043 8 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...

18 January 2021 7,366 3 View

How can i define a correct baseline for reading the anodic (forward) peak current when oxygen reduction reaction is distorting my cyclic voltammogram?

Dear colleagues I have troubles to read out the correct anodic peak currents from my cyclic voltammogram since ORR is pushing down my baseline. Is there anything (besides substracting a proper...

24 November 2020 4,792 6 View

Fuel Cell not working after charging?

I am making an electric fuel-cell car using platinum as an electrode and sodium hydroxide as an electrolyte. I tried both series and parallel connection to charging it, Even after charging 2...

18 November 2020 3,043 9 View

How the nature of ring electrode of RRDE is known to influence the percentage of peroxide detected during ORR reaction?

Why mostly GC disc and Pt ring RRDE is preferred for the detection of peroxide during ORR reaction? What will be the effect if the other ring electrode is used instead of Pt.

11 September 2020 1,647 2 View

How to obtain the mobility from the EIS data?

Electrochemical impedance spectroscopy

10 August 2020 7,755 2 View

What is a cause of such noise while doing a potentiodynamic corrosion testing with CP-Titanium?

Right now I am trying to make corrosion tests with commercially pure titanium. For some reason, there are a lot of noises in the plot. No bubbles form on the surface of the sample. I am pretty...

07 July 2020 4,529 3 View

Can Palladium (Pd) be a good choice as a working electrode for glucose electrochemical sensing?

If the answer to the question is yes, is it any reactions between Glucose solution (electrolyte) and Pd that might happen?

16 June 2020 7,133 1 View

Why does charge decreases after a certain degree of electropolymerization on screen printed electrode??

Hi, Recently, we have witnessed an unusual situation in which electric charge of an ongoing electropolymerization decreases after a certain length of polymerization, thus polymer no longer grows...

16 June 2020 9,796 3 View

Electrochemical testing in highly resistive lubricants using AgCl electrode?

I am trying to do some basic electrochemical corrosion tests (OCP, EIS, LPR) on steel samples in an oil-based lubricant. The resistivity of the oil poses a problem for the measurements of...

03 June 2020 6,213 3 View

How is it possible to get rid of bubbles at the surface of Au working electrode in cyclic voltammetry?

During doing cyclic voltammetry in three electrodes system (reference electrode, contour or auxiliary electrode, and the Au working electrode), tiny bubbles form at the surface of the Au working...

01 June 2020 4,466 17 View

An idea about the range of oxidation potential of alkyl halides (especially iodide) ?

I am actually wondering what is the range of oxidation potential of alkyl halides, especially species bearing an Iodine atom. I didn't find information in my book (organic electrochemistry by Ole...

26 May 2020 1,414 4 View

Mixed potential and electrode potential difference?

Hi, I am confused with basics of electrochemistry. Suppose i immersed a metal to an acidic solution and i measure electrode potential, in other words potential differences between metal and...

18 May 2020 9,393 3 View

How to calculate specific capacity in C/g from a CV curve?

I am newbie to battery materials. As I understand, specific capacity of a battery-type material can be expressed in term of C/g or mAh/g and can be calculated from the cyclic voltammetry (CV) or...

07 May 2020 4,758 6 View

How to choose the best smooth algorithm for your data in Origin?

I have several curves of applied potential versus electric current with hundreds of points in each of them. I am trying to analyze their first and second derivatives, but they are too noisy to...

28 April 2020 6,077 2 View

In electrochemistry (voltammetry, CV), can I use 2 identical electrodes for both WE and CE?

Hello everyone. In a three-electrode system for cyclic voltammetry, can I use two identical electrodes as working and counter (i.e. both Au and have the same surface area)? What will happen if I...

24 April 2020 7,624 20 View

Which book is best for electrochemistry?

To understand the electrochemical phenomenon undergoing at any interface, which book I should follow?

21 April 2020 3,083 21 View

Is the positioning of the reference electrode also important when measuring potential?

Hi. I learned the position of reference electrode is important as it is related to solution resistance and it should be as close to the working electrode as possible to reduce this...

09 April 2020 2,605 25 View

How to avoid pH changes in synthetic electrochemistry?

I've been trying to get a desulfurization reaction to work electrochemically but after leaving the reaction overnight I am getting large pH changes from pH 7 to pH 13/14 and my substrate is very...

01 April 2020 2,457 2 View

What kinetic equation is more suitable for modeling enzyme electrochemistry: Nernst or Butler -Volmer?

I would like to hear your opinion regarding what kinetic expression you preferred to use when modeling the electrochemical response of enzymes and bacteria. The Nernst equation of the...

30 March 2020 6,956 5 View

What are the ways to characterize a Ag/AgCl/KCl reference electrode apart from OCP test?

Before using it for electrochemistry purposes, are there any tests that we should perform to make sure that the reference electrode is working properly?

21 March 2020 7,586 4 View

When and How to use external resistance in Microbial fuel cells?

we have a double-chambered MFC that produced an OCV that reached 220 mV in 1 h, and was getting higher. after 24 hours the OCV dropped down, and I don't know why. I want to measure the generated...

17 March 2020 1,356 3 View

Why is the anodic active dissolution of the treated sample promoted?

In the polarization curve, the anodic active dissolution of the treated Mg alloy was enhanced compared to the bare sample, why? The treated sample surface was modified by ions implantation.

16 March 2020 7,904 3 View

How can I detect and quantify Hydrogen Peroxide in a solution?

I'm performing a electrochemical experiment, which should produce hydrogen peroxide, what techniques should I employ to reliably detect it from the solution, also what will be the best way to...

16 March 2020 419 11 View

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