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

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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 4,925 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 9,016 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 8,573 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 4,470 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 6,487 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 3,638 7 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 3,093 4 View

Can I have an ECSA value of 10.9 cm2 for commercially available Pd/C?

I have measured the ECSA value of commercially available 20 wt% Pd/C, from the Pd-O reduction region, in 0.5 M KOH. I am getting it to be 10.92 cm2. which is around 52 m2/gPd. Is it possible?

02 March 2016 8,574 2 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 9,104 5 View

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

I am getting an electron count of 2.7-3 for Pt/C ( 20 Wt% ) instead of 4. Can anyone please help me with this problem? Also, which potential region has to be used for the electorn count- Mixed or...

01 February 2016 5,978 7 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

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

How to converge PEMFC in Ansys Fluent?

I am simulating 1 cell of PEM with an area of 50 cm². The mesh has an orthogonality of 0.2 for the channels and bipoar plates (polyhedra) and a quality of 1 for the active zones (hexagonal). The...

26 June 2024 2,358 0 View

How to identify if a material is behaving like an anode or a cathode?

when we perform a cyclic voltammetry study, how can we conclude if a particular material is behaving like an anode or cathode with the help of that CV plot?

20 June 2024 1,453 3 View

What is the difference between absorption and adsorption?

30 May 2024 4,447 27 View

What is the difference between reaction and interaction?

What is the difference between reaction and interaction in chemistry? Would you please provide me with the details?

13 May 2024 2,524 6 View

Is there any real advantage in co-electrolyzing CO2 and H2O in liquid phase to produce syngas versus using separated electrolysis of H2O and CO2?

Electrochemistry is a pathway to convert CO2 into valuable products such as CO. However, a potential side product in the cathode is H2. I wonder if it is possible to tune the composition of the...

12 May 2024 9,061 3 View