Should the RDE scan of electrochemical Oxygen Reduction Reaction be positive-going RDE scan or a negative-going RDE scan?

Hi, When we perform an electrochemical oxygen reduction reaction, should it be a positive-going RDE scan or a negative-going RDE scan? Thanks, Saurav

10 November 2019 4,707 8 View

What are the 3 basic conditions for impedance measurements that it must satisfy?

Hi All, Reviewer has asked to demonstrate that EIS data conforms the three basic conditions for impedance measurements. Can anyone please clarify what are these 3 conditions? Thanks, Saurav

04 May 2019 8,809 3 View

How to selectively block Selenium active sites?

Hi, I am working with noble-metal selenide for electrochemical hydrogen evolution reaction in acidic medium. Using DFT, I found that Se sites are active towards HER. I want to prove it...

08 September 2018 8,396 3 View

Can Mott-schottky plot be used in electrochemistry?

Hi, I have a semiconductor system that I am using to understand electroreduction reaction. Can I use Mott-schottky plot to comment on the n-type/p-type behavior of the system? My worry is that I...

02 March 2018 4,365 3 View

Can I use Stainless steel plate as counter electrode for accelerated degradation test in HER?

Hi, I have been using Pt coil as counter electrode for HER in 0.5 M H2SO4. Unfortunately, we can observe Pt leaching out from the coil during prolonged cycling. To avoid this I started using...

08 September 2017 6,375 7 View

Should we purge oxygen in KOH before performing electrochemical OER?

Hi, While going though the literature I found two sets of researchers- one who purge electrolyte with O2 before OER and another set who purge N2 before OER. I am confused what to do. Please...

08 September 2017 3,508 7 View

Can anyone help me with electrochemistry of Palladium in alkaline medium?

Hi, If I have two types of Pd in my system, will I observe splitted Pd-O reduction region in CV corresponding to the presence of two types of Pd? Thanks, Saurav

11 December 2016 5,078 2 View

What is the correct way for stability check for ORR?

Hi, I am doing stability check for my catalyst using ADT method. If I am doing a 5000 cycle stability check, then should I do the 5000 cycles in one shot or can I break up into 5 x 1000...

08 September 2016 2,978 4 View

Can anyone please explain me the difference between NHE, RHE and SHE in a simple way?

I am too confused by the use of these terms (NHE, RHE and SHE) in research papers. Can anyone please help me out?

02 March 2016 8,755 5 View

Finding Problem with electron count calculation for ORR. Can anyone please help me out?

01 February 2016 5,871 7 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

How to get better phase shift in C-V curves for ferroelectric devices?

I tried to sweep my ferroelectric devices from -2V to 2V and then from 2V to -2V and The two hysteresis peaks are off by several microFarads. Should i increase bias voltage? I am doing these...

16 February 2021 8,514 2 View

Onset of Photo Oxidation in Polymers?

Hi! I am looking for some specific information in regards to the minimum amount of UV intensity required to begin the photo degradation process in polymers. I understand each polymer is...

15 February 2021 7,703 4 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