Stefan Scheiblbrandner

4 Questions 2 Answers 0 Followers

Questions related from Stefan Scheiblbrandner

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 4,879 6 View

What kind of ceramic is used for usual porous ceramic frits used for aqeuos reference electrodes?

I need to fabricate small sized AgAgCl reference electrodes with capillaries with IDs of ~1 mm and I'm looking for a supplier selling porous ceramic frits/rods with ODs of ~1 mm. Does anyone know...

05 December 2018 3,593 4 View

Why do i get a peak pair for a thiol-modified gold electrode in cyclic voltammetry?

The CV is supposed to serve as a blank BEFORE enzyme adsorption. The peak pair appears at appr. +340 mV vs SHE. I got it when using 3-mercaptopropionic acid and 4-mercaptophenol in 200 mM...

14 January 2013 5,523 4 View

Any suggestions for pre-treating a Pt-wire working electrode? At the moment I only cycle in 1M H2SO4.

Polishing with alumina suspension is difficult using a 0.1mm diameter wire. I already read about dipping in concentrated nitric acid, but I don't have access to the corresponding reference. At the...

10 December 2012 6,985 2 View