Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Voltaic/Galvanic Cells02:47

Voltaic/Galvanic Cells

57.8K
Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
57.8K
Balancing Redox Equations02:58

Balancing Redox Equations

52.6K
Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
52.6K
Batteries and Fuel Cells03:12

Batteries and Fuel Cells

27.7K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
27.7K
Electrolysis03:00

Electrolysis

26.8K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
26.8K
Ion Exchange01:17

Ion Exchange

624
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
624
Ladder Diagrams: Redox Equilibria01:30

Ladder Diagrams: Redox Equilibria

483
Ladder diagrams are useful tools for understanding redox equilibrium reactions, especially the effects of concentration changes on the electrochemical potential of the reaction. The vertical axis in the redox ladder diagrams represents the electrochemical potential, E. The area of predominance is demarcated using the Nernst equation.
Consider the Fe3+/Fe2+ half-reaction, which has a standard-state potential of +0.771 V. At potentials more positive than +0.771 V, Fe3+ predominates, whereas Fe2+...
483

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Fundamentals, Measurement and Regulation of the Conductance of Single Molecule Junctions.

Angewandte Chemie (International ed. in English)·2026
Same author

Enhanced Piezoelectric Effect in P(VDF-TrFE) through Synergistic Templating by PEDOT:PSS and Paper.

ACS applied electronic materials·2026
Same author

Spin transport in the phenalenyl radical throughout molecular dynamics trajectories.

Physical chemistry chemical physics : PCCP·2026
Same author

Aluminum Oxide Coatings on Co-Rich Cathodes and Their Interactions with Organic Electrolyte.

ACS applied materials & interfaces·2025
Same author

When Dihedral Angles Mask Denticity in Molecular Conductance.

Chemphyschem : a European journal of chemical physics and physical chemistry·2025
Same author

Influence of Ether-Functionalized Pyrrolidinium Ionic Liquids on Properties and Li<sup>+</sup> Cation Solvation in Solvate Ionic Liquids.

The journal of physical chemistry. C, Nanomaterials and interfaces·2025

Related Experiment Video

Updated: Jul 23, 2025

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery
09:49

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery

Published on: February 13, 2017

10.5K

Reversible Electrochemical Anionic Redox in Rechargeable Multivalent-Ion Batteries.

Ankur L Jadhav1, Taylor R Juran2, Matthew A Kim3

  • 1Department of Chemical Engineering, The City College of New York, CUNY, New York, New York 10031, United States.

Journal of the American Chemical Society
|July 13, 2023
PubMed
Summary
This summary is machine-generated.

Rechargeable multivalent-ion batteries show promise, but cathode materials for multivalent ion intercalation are scarce. This study reveals a unique anionic redox mechanism in chevrel phases, enabling stable multivalent cation intercalation.

More Related Videos

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

12.8K
Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
10:03

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Published on: November 11, 2013

25.5K

Related Experiment Videos

Last Updated: Jul 23, 2025

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery
09:49

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery

Published on: February 13, 2017

10.5K
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

12.8K
Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
10:03

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Published on: November 11, 2013

25.5K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Solid-State Chemistry

Background:

  • Rechargeable multivalent-ion batteries offer high capacity but lack suitable cathode materials for efficient ion intercalation.
  • Crystalline chevrel phases are rare cathode materials that can reversibly intercalate multivalent cations.
  • Lack of design rules hinders the development of stable multivalent-ion intercalation electrodes.

Purpose of the Study:

  • To elucidate the charge storage mechanism in chevrel phase electrodes during multivalent cation intercalation.
  • To identify design principles for novel intercalation electrodes facilitating multivalent cation insertion.

Main Methods:

  • Solid-state nuclear magnetic resonance (NMR) spectroscopy
  • Synchrotron X-ray absorption near edge structure (XANES) measurements
  • Operando synchrotron X-ray diffraction
  • Density functional theory (DFT) calculations

Main Results:

  • Electrons are selectively transferred to the anionic chalcogen framework upon cation intercalation.
  • Transition metal (Mo) octahedra remain redox inactive during the process.
  • A reversible electrochemical anionic redox mechanism occurs without chemical bond disruption.

Conclusions:

  • The charge storage in chevrel phases involves reversible anionic redox, distinct from typical transition metal-based electrodes.
  • Understanding this mechanism provides design principles for advanced multivalent-ion battery cathodes.
  • This work paves the way for developing new intercalation electrodes for efficient multivalent cation storage.