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Topics (29)

What is the definition of the impedance Z?

How to correctly define the $Z$ impedance
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Which scanning probe electrochemistry technique?

The scanning probe electrochemistry techniques on the M470 are compared.
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ZSim and ZFit as learning tools. IV. The effect of high frequency inductance.

Short description: High frequency inductance can strongly affect the shape of impedance graphs and need to be accounted for during data fitting.
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ZSim and ZFit as learning tools. II. Why circle fitting is wrong.

We demonstrate why circle fitting should not be used to analyze impedance data using ZSim- part of EC-Lab, BioLogic's potentiostat control/analysis software
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ZSim and ZFit as learning tools. III How to detect an inductive behaviour at low frequencies

Does the Nyquist impedance diagram of the C1/R1/(R2+L2) circuit always have an inductive arc at low frequencies?
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Multichannel & Single-channel potentiostats – what’s the difference? (Electrochemistry Basics Series)

An overview of the differences between single channel and multichannel potentiostat galvanostats
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How potentiostats work and their use in Science & Industry (Electrochemistry Basics Series)

What is a potentiostat? An article detailing every aspect of this versatile electrochemical multitool. Covers Potentiostat functionality and operation, the history of the potentiostat, uses and applications and the future of the potentiostat
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$\small R_\text p = \lim \limits_{f \rightarrow 0} \text{Re} \;Z$. Why?

Why is the polarization resistance the finite low-frequency limit of the impedance? This Learning Center article explains why...
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How to correct impedance measurements when using longer cables or a test fixture (Electrochemistry Basics Series)

Focus on your Device under Test. How to remove parasitic impedance due to extension cables or connection interfaces
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The different current and voltage setpoint options in EC/BT-Lab®

This article presents the various options available in EC/BT-Lab® for potential and current setpoints.
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Scanning probe electrochemistry for sustainable energy research

A short article and associated video relating to scanning probe electrochemistry and sustainable energy
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How to use EIS accuracy contour plots

EIS accuracy contour plots must be used to interpret errors made during EIS measurements and identify the best frequencies possible for a given impedance range.
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Investigation of impedance measurements using the Z Sim tool (Electrochemistry Basics Series)

To adjust the frequency range of your EIS experiment or just to see the shape of your model, Z Sim is available on both EC-Lab® and BT-Lab® software.
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Rotating Ring Disk Electrode: an Introduction

The principles and main uses of the Rotating Ring Disk Electrode.
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How do I customize my plots?

A suitable plot with the right variables allows you directly access the results and saves a great deal of time during the analysis. In this short article we show you how...
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Create and save your own protocols

Learn how to save time by configuring full experiments from previous settings; including safety limits, advanced settings, cell characteristics and external device configuration.
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Levich analysis: the principles

The Levich analysis is mainly used to determine the diffusion coefficient of a redox species. But how does it work exactly?
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Koutecký-Levich analysis: the principles

The Koutecký-Levich analysis is used to determine kinetic parameters of a redox reaction. But how does it work exactly?
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Split an EIS experiment into multiple sequences: save time without compromising measurement quality

Reliable impedance measurements require the system under study to remain linear and stationary during the whole measurement sequence. This article describes the ideal configuration for studying unstable systems such as batteries or supercaps to save time while maintaining good measurement quality.
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Connection to the cell – Part 1 – What is “ground”?

Different grounding options based on application type
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Anode, cathode, positive and negative: battery basics

This article clarifies the differences between anodes cathodes and positive and negative electrodes in secondary batteries.
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Cyclic Voltammetry: how to obtain great results with your potentiostat (Electrochemistry basics series)

What are the critical Cyclic Voltammetry parameters and how should you tune them correctly to ensure you get the best out of your instrument?
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Coupling potentiostats & spectrometers for spectroelectrochemical measurements

One of the possibilities of characterizing intermediate species created during a redox process, is to couple a spectrometer with a potentiostat
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What is EIS ? (Electrochemistry Basics Series)

Electrochemical Impedance spectroscopy (EIS) is a powerful tool enabling the study of processes that occur at the interface of the electrode.
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Data of interest – work more efficiently.

Get the most out of your potentiostat/battery cycler : how EC/BT-Lab can help you work more efficiently as well as save valuable time.
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Resolution, Precision, Accuracy, Temperature stability and Time base: The five to watch (Electrochemistry Basics Series)

The five characteristics that should be on every electrochemist’s radar
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No need to plan your future analysis… Go straight ahead

It is time to demystify a false truth. You really do not always need to add points in the record settings of BT-Lab® and EC-Lab® in order to obtain highly accurate measurements.
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Modify on-the-Fly: Flexible potentiostat/battery cycler control

No need to stop the experiment with EC-Lab®’s “modify-on-the-fly” functionality
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Potentiostats: Obtaining high quality measurements (Electrochemistry Basics Series)

This article gives some tips to improve the quality of measurements, from optimizing the setup or the connection interfaces, to the geometry of the cell itself.
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