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

58.2K
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,...
58.2K
Potentiometry: Types of Electrodes01:19

Potentiometry: Types of Electrodes

811
Reference electrodes serve as a stable reference point for potentiometric measurements, while indicator and working electrodes react to variations in the composition of a solution.
The Standard Hydrogen Electrode (SHE) is a widely used reference electrode that maintains zero potential across all temperatures. However, its need for a continuous hydrogen gas supply renders it impractical for everyday use.
An alternative to SHE is the Saturated Calomel Electrode (SCE). This electrode features an...
811
Electrodeposition01:08

Electrodeposition

691
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
691
Electrolysis03:00

Electrolysis

27.2K
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...
27.2K
Standard Electrode Potentials03:02

Standard Electrode Potentials

44.7K
On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...
44.7K
Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

685
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
685

You might also read

Related Articles

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

Sort by
Same author

FreeMMIF: interactive multimodal medical image fusion via instruction-aware diffusion.

Frontiers in neurology·2026
Same author

Sirtuin 1 deficiency mediates chronic kidney disease-induced inflammaging cardiovascular calcification.

Molecular biomedicine·2026
Same author

A molten salt metal-air electrolyzer for recycling superalloy.

Nature communications·2026
Same author

Phenolics-Reengineered Electron Flow in the Electro-Fenton Process for Energy-Conserving Decontamination.

Environmental science & technology·2026
Same author

Mechanism of palytoxin-induced ferroptosis in HaCaT cells via targeting TrxR1.

Cell biology and toxicology·2026
Same author

Mechanisms ofra Tetmethylpyrazine in spinal cord injury: a narrative review.

Molecular biology reports·2026

Related Experiment Video

Updated: Aug 14, 2025

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells
06:39

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

Published on: October 20, 2023

3.1K

An iron-base oxygen-evolution electrode for high-temperature electrolyzers.

Kaifa Du1,2, Enlai Gao3, Chunbo Zhang3

  • 1School of Resource and Environmental Sciences, Wuhan University, Wuhan, 430072, China.

Nature Communications
|January 17, 2023
PubMed
Summary

A novel iron-based electrode with a lithium ferrite scale offers a stable and efficient solution for high-temperature oxygen evolution reactions in molten salts. This breakthrough enables cost-effective CO2 conversion in electrolyzers.

More Related Videos

Development and Validation of Chromium Getters for Solid Oxide Fuel Cell Power Systems
12:30

Development and Validation of Chromium Getters for Solid Oxide Fuel Cell Power Systems

Published on: May 26, 2019

7.3K
Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
09:18

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

11.5K

Related Experiment Videos

Last Updated: Aug 14, 2025

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells
06:39

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

Published on: October 20, 2023

3.1K
Development and Validation of Chromium Getters for Solid Oxide Fuel Cell Power Systems
12:30

Development and Validation of Chromium Getters for Solid Oxide Fuel Cell Power Systems

Published on: May 26, 2019

7.3K
Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
09:18

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

11.5K

Area of Science:

  • Electrochemistry
  • Materials Science
  • Chemical Engineering

Background:

  • High-temperature molten-salt electrolysis is crucial for industrial processes.
  • Developing stable and efficient high-temperature oxygen evolution reaction (HT-OER) electrodes is a significant challenge.
  • Existing electrodes often face limitations in cost, longevity, and performance.

Purpose of the Study:

  • To develop a low-cost, durable, and efficient electrode for HT-OER in molten salts.
  • To investigate the underlying principles governing oxide film stability in molten salt environments.
  • To demonstrate the practical application of the developed electrode in CO2 conversion.

Main Methods:

  • Fabrication of an iron-base electrode.
  • In situ formation of a lithium ferrite scale on the electrode surface.
  • Investigation of ionic potential-stability and basicity modulation principles for oxide films.
  • Testing electrode performance in high-temperature molten carbonate and chloride salts.
  • Construction and operation of a kiloampere-scale molten carbonate electrolyzer for CO2 conversion.

Main Results:

  • The iron-base electrode with in situ formed lithium ferrite scale exhibited enhanced stability and catalytic activity.
  • The ionic potential-stability relationship and basicity modulation principle were elucidated.
  • The developed electrode successfully facilitated efficient CO2 conversion to carbon and oxygen in a large-scale electrolyzer.
  • The electrode demonstrated robust performance in both molten carbonate and chloride electrolytes.

Conclusions:

  • The iron-base electrode with a lithium ferrite scale presents a viable solution for challenging HT-OER applications.
  • The discovered design principles provide a foundation for creating new, cost-effective, and Earth-abundant HT-OER electrodes.
  • This work paves the way for improved electrochemical devices utilizing molten carbonate and chloride electrolytes, particularly for CO2 utilization.