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Electrochemical Impedance Spectroscopy

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EIS: A Powerful Technique

Electrochemical Impedance Spectroscopy (EIS) is a powerful technique with a broad range of research applications.  Click on a link below to view the Application or Technical Note.

 

Complete List EIS Application Notes »

EIS of Organic Coatings and Paints

Posted by gamry on February 2, 2022

IntroductionAll my impedance spectra look the same!

This complaint is very common. “I’m an experienced polymer chemist.

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Basics of Electrochemical Impedance Spectroscopy

Posted by gamry on April 17, 2021

This tutorial presents an introduction to Electrochemical Impedance Spectroscopy (EIS) theory and has been kept as free from mathematics and electrical theory as possible.

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Total Harmonic Distortion: Theory and Practice

Posted by gamry on April 15, 2021

*Please note THD is only available in software version 7. 8.

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Drift Correction in EIS

Posted by gamry on December 7, 2020

IntroductionElectrochemical Impedance Spectroscopy (EIS) is a powerful technique for understanding the physical and electrochemical properties of electrochemical reactions.

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Uses of Hybrid EIS

Posted by gamry on August 13, 2020

IntroductionHybrid Electrochemical Impedance Spectroscopy (EIS) is a galvanostatic impedance spectroscopy experiment that can be used for samples that have impedances that change significantly with frequency.

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EIS in Wetting of Lithium-ion Battery Materials

Posted by gamry on January 8, 2019

Lithium-ion batteries (LIBs) as electrochemical energy storage systems are key substitutes for fossil fuels. They are valuable also because of their low weight, high energy-density and long service life.

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Quality of Your Fit in EIS

Posted by gamry on January 8, 2019

Electrochemical Impedance Spectroscopy (EIS) is now ubiquitous in the electrochemical research, development, and quality-control world.

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EIS on Curved Electrodes

Posted by gamry on April 3, 2018

Introduction

This Technical Note concerns electrochemical impedance spectroscopy (EIS), and assumes that you have read and understand the material covered in the Application Note “Basics of Electrochemical Impedance Spectroscopy.

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EIS: Potentiostatic or Galvanostatic Mode?

Posted by gamry on June 8, 2017

IntroductionElectrochemical Impedance Spectroscopy (EIS) measurements are more often performed in potentiostatic mode than under galvanostatic mode. The reason is partly convention and partly driven by materials.

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Waveform Generation and Frequency Resolution

Posted by gamry on August 25, 2016

Purpose of This NoteThis Technical Note outlines how waveform signals are generated with a potentiostat.

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