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Electrochemical Impedance Spectroscopy

Viewing posts in category: 'EIS'

Electrochemical Impedance at a RDE

Posted by gamry on September 16, 2024

IntroductionWhenever you read about Electrochemical Impedance, one of the first things they tell you is "The system must be stable and unchanging.

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Low-impedance EIS at its Limits: Gamry Reference 30k Booster

Posted by gamry on May 14, 2024

IntroductionThis Application Note describes measurement of very small impedances using Electrochemical Impedance Spectroscopy (EIS).

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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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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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Determination of the correct value of Cdl from the impedance results fitted by the commercially available software

Posted by gamry on March 11, 2015

IntroductionWith the introduction of a constant phase element (CPE) as a replacement for the capacity in EIS measurements, most of the experimentally obtained results could be fitted by commercially available…

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How Cabling and Signal Amplitudes Affect EIS Results

Posted by gamry on August 12, 2014

Accurate EISGamry Instruments prides itself on performing accurate EIS. We publish an Accuracy Contour Plot (ACP) for every instrument we sell.

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Raman Spectroscopy

Posted by gamry on January 6, 2014

This application note discusses Raman spectroscopy and its combination with electrochemical techniques. The theory of Raman spectroscopy and the effect of light on matter are explained.

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Verification of Low-impedance EIS Using a 1 mΩ Resistor

Posted by gamry on August 2, 2013

IntroductionElectrochemical Impedance Spectroscopy (EIS) is a powerful way to gain information about electrochemical systems, often applied to new electrochemical devices used for energy-conversion and storage (ECS), including batteries, fuel cells,…

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OptiEIS™: A Multisine Implementation

Posted by gamry on August 2, 2013

IntroductionElectrochemical Impedance Spectroscopy (EIS) has become a standard technique in the electrochemists’ toolbox providing detailed information over very wide time scales and amplitudes.

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