Alex Al

3 Questions 1 Answers 0 Followers

Questions related from Alex Al

Why the Nyquist plot I have for bare gold electrode in PBS is a linear line?

I ran EIS of bare flat gold electrode in 1x PBS solution, from 500k Hz to 5 Hz. The Nyquist plot displays a linear line about ~50 degree. Isn't this supposed to be a semi-circue? When fitting with...

03 November 2022 283 0 View

How to check your in-house AgCl coating quality on Ag wire?

I plan to coat AgCl on a Ag wire via electrical coating method. Basically, apply a positive bias on the Ag wire in high concentration KCl solution. After the coating, how do you know you have...

21 October 2022 2,701 1 View

How do you validate the accuracy of a new in-house made potentiostat, with particular interest in EIS (electrochemical impedance) measurement?

I am building a potentiostat using very common circuit design. After completion, how do I validate if this potentiostat is accurate? I am mostly only interested in EIS measurement. What is the...

03 October 2022 2,595 3 View