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

Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

3.2K
Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
3.2K
Electrochemical Cells01:28

Electrochemical Cells

138
Electrochemical cells are systems that convert chemical energy into electrical energy or use electrical energy to drive chemical reactions. They consist of two electrodes in contact with an electrolyte, where redox reactions enable electron transfer. Most electrochemical cells include two half-cells connected by an external wire for electron flow and a salt bridge for ion flow. The salt bridge contains an electrolyte solution and maintains charge neutrality by allowing ions—not...
138
Interfacial Electrochemical Methods: Overview01:06

Interfacial Electrochemical Methods: Overview

1.1K
Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
1.1K
Oxidation-Reduction Reactions03:11

Oxidation-Reduction Reactions

77.9K
Oxidation–Reduction Reactions
77.9K
Redox Equilibria: Overview01:23

Redox Equilibria: Overview

1.7K
A reduction-oxidation reaction is commonly called a redox reaction. In a redox reaction, electrons are transferred from one species to another rather than being shared between or among atoms. The reducing agent or reductant is the species that loses electrons and gets oxidized in the process. The species that gains electrons and gets reduced in the process is the oxidizing agent or oxidant. Redox reactions are represented as two separate equations called half-reactions, where one equation...
1.7K
Redox Reactions01:27

Redox Reactions

1.3K
Redox reactions are vital biochemical processes that underpin energy metabolism in cells. These reactions involve the transfer of electrons between molecules, occurring in tandem as oxidation and reduction. Oxidation refers to the loss of electrons, while reduction denotes their gain. This coupling ensures the seamless flow of electrons through metabolic pathways. For example, in bacterial metabolism, glucose undergoes oxidation to carbon dioxide, while oxygen is simultaneously reduced to...
1.3K

You might also read

Related Articles

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

Sort by
Same author

Isolating Coupled Effects by Interface Editing of Intermetallic Heterostructures for Fuel Cells.

Journal of the American Chemical Society·2026
Same author

From soil to crop: a tiered screening strategy for lipopeptide-producing <i>Bacillus</i> with antifungal, antibacterial and plant growth-promoting activities.

Frontiers in microbiology·2026
Same author

Volumetric Properties and Microscopic Interactions of Allyl-Functionalized Imidazolium Ionic Liquid Aqueous Dilute Solutions: A Combined Experimental, Machine Learning, and Pitzer Modeling Study.

The journal of physical chemistry letters·2026
Same author

Nanoparticle-Loaded Injectable Hydrogel Alleviates Titanium Particle-Induced Osteolysis by Disrupting GATA6/DDX3X-Mediated Macrophage Inflammation.

Biomaterials research·2026
Same author

Neuroprotective Effects of Esketamine in Central Nervous System Disorders: Mechanisms and Cellular Targets.

Basic & clinical pharmacology & toxicology·2026
Same author

From persistence to reactivity: halogen-regulated photosensitization of xanthene chromophores for sustainable water purification.

Water research·2026

Related Experiment Video

Updated: Mar 28, 2026

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
08:40

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

4.4K

Two-dimensional iridium-cobalt oxide for high-efficiency acidic oxygen evolution reaction electrocatalysis.

Chendi Zhao1, Shuangxing Li1, Hanzhuo Luo1

  • 1College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China. qshao@suda.edu.cn.

Chemical Communications (Cambridge, England)
|March 27, 2026
PubMed
Summary

A novel two-dimensional iridium-cobalt oxide was synthesized for oxygen evolution reactions. This electrocatalyst demonstrates excellent stability and low overpotential in acidic conditions, crucial for water electrolysis.

More Related Videos

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
10:15

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

Published on: November 7, 2025

1.3K
Iridium Oxide-reduced Graphene Oxide Nanohybrid Thin Film Modified Screen-printed Electrodes as Disposable Electrochemical Paper Microfluidic pH Sensors
09:15

Iridium Oxide-reduced Graphene Oxide Nanohybrid Thin Film Modified Screen-printed Electrodes as Disposable Electrochemical Paper Microfluidic pH Sensors

Published on: November 22, 2016

11.2K

Related Experiment Videos

Last Updated: Mar 28, 2026

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
08:40

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

4.4K
Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
10:15

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

Published on: November 7, 2025

1.3K
Iridium Oxide-reduced Graphene Oxide Nanohybrid Thin Film Modified Screen-printed Electrodes as Disposable Electrochemical Paper Microfluidic pH Sensors
09:15

Iridium Oxide-reduced Graphene Oxide Nanohybrid Thin Film Modified Screen-printed Electrodes as Disposable Electrochemical Paper Microfluidic pH Sensors

Published on: November 22, 2016

11.2K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Inorganic Chemistry

Background:

  • Efficient electrocatalysts are vital for sustainable energy technologies like water electrolysis.
  • Developing robust electrocatalysts for the oxygen evolution reaction (OER) in acidic media remains a significant challenge.

Purpose of the Study:

  • To synthesize a novel two-dimensional iridium-cobalt oxide material.
  • To evaluate its performance as an electrocatalyst for the oxygen evolution reaction (OER) in acidic media.
  • To assess its stability during proton exchange membrane water electrolysis.

Main Methods:

  • Molten-alkali mechanochemical synthesis of a two-dimensional iridium-cobalt oxide.
  • Electrochemical characterization in 0.5 M sulfuric acid (H2SO4) to determine overpotential for OER.
  • Long-term stability testing during proton exchange membrane water electrolysis at a constant voltage.

Main Results:

  • The synthesized iridium-cobalt oxide exhibited a low overpotential of 256 mV at a current density of 10 mA cm⁻² for OER.
  • The material demonstrated exceptional stability, operating continuously for 600 hours at 1.7 V during water electrolysis.
  • The two-dimensional structure facilitated efficient electrocatalytic activity.

Conclusions:

  • The molten-alkali mechanochemical method is effective for synthesizing advanced 2D oxide electrocatalysts.
  • The novel iridium-cobalt oxide shows great promise as a highly stable and efficient electrocatalyst for acidic water electrolysis.
  • This material could significantly advance proton exchange membrane water electrolyzer technology.