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Related Concept Videos

Voltammetric Techniques: Linear-Scan (E vs Time)01:12

Voltammetric Techniques: Linear-Scan (E vs Time)

Polarography is a classical voltammetric technique used to analyze electrochemical reactions. This method applies a linear potential sweep to a dropping mercury electrode (DME), and the resulting current is measured. A dropping mercury electrode is commonly used as the working electrode in polarography. It consists of a capillary tube filled with mercury, where the tiny droplet forms at the tip. This droplet continuously drops from the capillary, creating a new electrode surface for each...
Voltammetric Techniques: Pulse Voltammetry01:17

Voltammetric Techniques: Pulse Voltammetry

Differential-pulse voltammetry (DPV) is a type of voltammetry that involves applying a series of voltage pulses to an electrochemical cell while measuring the resulting current. In DPV, the differential pulse or small potential pulses are superimposed on a linear potential sweep. The magnitude of these pulses is typically small, often in the millivolt range. Each voltage pulse lasts a short duration, usually in the order of a few milliseconds, and is applied at regular intervals along the...
Voltammetry: Overview01:20

Voltammetry: Overview

Voltammetry is an electroanalytical technique in which the current flowing through an electrochemical cell is measured as a function of applied potential, typically under conditions of concentration polarization. The technique provides valuable information about redox-active species, and the current response is plotted as a voltammogram.
A voltammetric cell uses three electrodes: a working electrode, a reference electrode, and an auxiliary electrode. The redox reactions occur in the working...
Voltammetry: Stripping Methods01:13

Voltammetry: Stripping Methods

Anodic Stripping Voltammetry (ASV), Cathodic Stripping Voltammetry (CSV), and Adsorptive Stripping Voltammetry (AdSV) are electrochemical techniques used to determine trace amounts of analytes in solution. These methods involve applying a potential to an electrode and measuring the resulting current.
Anodic Stripping Voltammetry (ASV)
ASV is used to determine metals and metalloids at trace levels. It involves two steps: deposition and stripping. First, a negative potential is applied to the...
Voltammograms: Overview01:16

Voltammograms: Overview

Voltammograms are current plots as a function of applied potential, offering insights into electrochemical systems. The shape of a voltammogram depends on how the current is measured and whether convection (heat transfer by fluid movement) is present or absent.
Shapes of Voltammograms
Voltammetric Techniques: Cyclic Voltammetry01:10

Voltammetric Techniques: Cyclic Voltammetry

Cyclic voltammetry (CV) is an electrochemical technique used to investigate the redox properties of a chemical species. It involves measuring the current response of an electrochemical cell as a function of the applied potential. The setup for cyclic voltammetry typically consists of a working electrode, a reference electrode, and a counter electrode—all immersed in an electrolyte solution. The working electrode is where the redox reaction of interest occurs, while the reference electrode...

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Related Experiment Video

Updated: May 9, 2026

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
07:55

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering

Published on: April 17, 2018

Fixed energy X-ray absorption voltammetry.

Alessandro Minguzzi, Ottavio Lugaresi, Cristina Locatelli

    Analytical Chemistry
    |July 18, 2013
    PubMed
    Summary
    This summary is machine-generated.

    Fixed energy X-ray absorption voltammetry (FEXRAV) offers rapid, in situ characterization of electrode materials by monitoring oxidation states. This technique quickly screens systems, complementing detailed X-ray absorption spectroscopy methods.

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    Electrochemical Impedance Spectroscopy as a Tool for Electrochemical Rate Constant Estimation
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    Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
    07:55

    Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering

    Published on: April 17, 2018

    Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds
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    Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds

    Published on: October 18, 2018

    Electrochemical Impedance Spectroscopy as a Tool for Electrochemical Rate Constant Estimation
    08:41

    Electrochemical Impedance Spectroscopy as a Tool for Electrochemical Rate Constant Estimation

    Published on: October 10, 2018

    Area of Science:

    • Electrochemistry
    • Materials Science
    • Spectroscopy

    Background:

    • Introduces Fixed Energy X-ray Absorption Voltammetry (FEXRAV) as a novel in situ X-ray absorption technique.
    • FEXRAV records absorption coefficient at a fixed energy during potential variation for electrode material characterization.

    Discussion:

    • The fixed energy is selected near an X-ray absorption edge for maximum contrast between oxidation states.
    • Changes in oxidation state directly correlate with variations in the absorption coefficient.
    • FEXRAV provides rapid mapping of oxidation states within defined potential windows.

    Key Insights:

    • Enables quick screening of various electrode materials and experimental conditions (e.g., electrolytes, potential ranges).
    • Serves as a preliminary step before in-depth X-ray Absorption Near Edge Structure (XANES) or Extended X-ray Absorption Fine Structure (EXAFS) analyses.
    • Significantly reduces experiment time compared to traditional X-ray absorption spectroscopy (XAS) methods.

    Outlook:

    • Facilitates faster preliminary characterization of electrode materials.
    • Opens possibilities for kinetic analysis due to reduced experiment duration.
    • Complements advanced XAS techniques by enabling rapid initial assessments.