Episode #136: Why do we use high EIS frequencies to measure solution resistance?

This is a Livestream Q&A/Ask Us Anything for answering YOUR questions on YouTube. In this Q&A session we will answer your electrochemistry research questions LIVE, as well as any other questions related personal topics like careers, academia, industry, or life in general.

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Time stamps:
00:00 - Introduction
06:01 - Livestream starts
11:20 - I am confused while choosing the potential window when doing electrochemical analysis.
16:35 - I am a research student in energy storage devices. Could you explain how to start my electrochemistry study, and what books should I read?
23:03 - In EIS, why do we use high frequencies to determine the solution conductivity (or solution resistance)? At high frequencies, doesn't the capacitive impedance become small and therefore dominate?
31:57 - I don't quite understand how activity coefficients work, and what information they give. How are they calculated?
40:13 - What is electrochemistry?
44:25 - What are the most important things to know about OCP?
48:17 - I'm depositing Pt nanoparticles onto GC. Can I use diamond micropolish suspension instead of alumina for polishing the electrode between tests?
59:22 - Can you calibrate a homemade stimulating electrode for neuroscience using a regular potentiostat?
1:05:22 - Why does my OCP not stabilize for many hours for a very high impedance system with coated steel where my impedance is 100 GΩ, and the phase angle is -90°?
1:26:25 - What happens electrochemically in a Li-ion cell before its initial SEI formation while it is still below 1.5 V and below 3.0 V?
1:37:47 - Are there instances of bubbling carbon dioxide during cyclic voltammetry for CO2 reduction, or do you always bubble for 30 minutes before scanning?
1:41:07 - Assuming I have two electrodes with steel tips that have identical exposure, which one would have a lower total impedance: a long, 10 cm continuous piece of steel wire, or a copper wire using silver epoxy attached to a 3 cm steel piece?

Видео Episode #136: Why do we use high EIS frequencies to measure solution resistance? канала Pine Research Instrumentation, Inc.