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

Electrolyte and Nonelectrolyte Solutions02:21

Electrolyte and Nonelectrolyte Solutions

71.9K
Substances that undergo either a physical or a chemical change in solution to yield ions that can conduct electricity are called electrolytes. If a substance yields ions in solution, that is, if the compound undergoes 100% dissociation, then the substance is a strong electrolyte. Complete dissociation is indicated by a single forward arrow. For example, water-soluble ionic compounds like sodium chloride dissociate into sodium cations and chloride anions in aqueous solution.
71.9K
Polymers02:34

Polymers

40.8K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
40.8K
Electrolytes: van't Hoff Factor03:08

Electrolytes: van't Hoff Factor

36.6K
Colligative Properties of Electrolytes
The colligative properties of a solution depend only on the number, not on the identity, of solute species dissolved. The concentration terms in the equations for various colligative properties (freezing point depression, boiling point elevation, osmotic pressure) pertain to all solute species present in the solution. Nonelectrolytes dissolve physically without dissociation or any other accompanying process. Each molecule that dissolves yields one...
36.6K
Water: A Bronsted-Lowry Acid and Base02:30

Water: A Bronsted-Lowry Acid and Base

58.6K
The reaction between a Brønsted-Lowry acid and water is called acid ionization. For example, when hydrogen fluoride dissolves in water and ionizes, protons are transferred from hydrogen fluoride molecules to water molecules, yielding hydronium ions and fluoride ions:
58.6K
States of Water01:23

States of Water

56.8K
Water exists in any one of the three classical states: solid (ice), liquid (water), and gas (steam or water vapor). The state of water depends on i) the intermolecular forces that draw molecules together and ii) the kinetic energy that leads to movements that pull them apart.
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
56.8K
Metallic Solids02:37

Metallic Solids

20.6K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.6K

You might also read

Related Articles

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

Sort by
Same author

[ATM/H2AX and repair of sperm-DNA damage during cryopreservation].

Zhonghua nan ke xue = National journal of andrology·2011
Same author

Predicting accident frequency at their severity levels and its application in site ranking using a two-stage mixed multivariate model.

Accident; analysis and prevention·2011
Same author

Photothermally enhanced photodynamic therapy delivered by nano-graphene oxide.

ACS nano·2011
Same author

[Characteristics of soil respiration in Phyllostachys edulis forest in Wanmulin Natural Reserve and related affecting factors].

Ying yong sheng tai xue bao = The journal of applied ecology·2011
Same author

Quality changes in sea urchin (Strongylocentrotus nudus) during storage in artificial seawater saturated with oxygen, nitrogen and air.

Journal of the science of food and agriculture·2011
Same author

Global effect of an RNA polymerase β-subunit mutation on gene expression in the radiation-resistant bacterium Deinococcus radiodurans.

Science China. Life sciences·2011
Same journal

One-Pot Depolymerization, Demethylation, and Phenolation of Lignin for Bioactive Polyphenol Production.

ChemSusChem·2026
Same journal

Stabilizing Ni-O Through Bi Doping in LaNiO<sub>3</sub> Perovskite Oxide for Efficient Anion Exchange Membrane Water Electrolysis.

ChemSusChem·2026
Same journal

Cobalt-Doped Manganese Oxide/Ruthenium Oxide Composite Interface for Acidic Oxygen Evolution Reaction.

ChemSusChem·2026
Same journal

Hierarchically Engineered NiSe<sub>2</sub>-CuFeO<sub>2</sub> Heterostructures on Biomass-Derived Carbonized Wood for Efficient Ethanol-Assisted Water Electrolysis.

ChemSusChem·2026
Same journal

Uniform Lignin-Epoxy Hybrid Colloidal Spheres With Unprecedented pH 14 Alkaline Resistance: Facile Synthesis for Sustainable Photonic Materials.

ChemSusChem·2026
Same journal

Capacitive Deionization for Brackish Water Purification Using Asymmetric Charge-Immobilized Activated Carbon With Safe Hydrophilic Binders.

ChemSusChem·2026
See all related articles

Related Experiment Video

Updated: Jan 30, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
05:33

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

22.3K

Iridium-Based Catalysts for Solid Polymer Electrolyte Electrocatalytic Water Splitting.

Chao Wang1, Feifei Lan1, Zhenfeng He2

  • 1Advanced Energy Materials and Systems Institute, College of Materials Science and Engineering, North University of China, Taiyuan, 030051, PR China.

Chemsuschem
|January 19, 2019
PubMed
Summary
This summary is machine-generated.

Iridium-based catalysts are crucial for efficient oxygen evolution in solid polymer electrolyte water electrolysis, enabling hydrogen production from renewable energy. This review details strategies to enhance iridium catalyst performance for stable and active electrocatalysis.

Keywords:
electrochemistryiridiumsolid polymer electrolytessupported catalystswater splitting

More Related Videos

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

3.9K
Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture
09:53

Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture

Published on: May 13, 2018

8.7K

Related Experiment Videos

Last Updated: Jan 30, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
05:33

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

22.3K
Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

3.9K
Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture
09:53

Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture

Published on: May 13, 2018

8.7K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Renewable Energy

Background:

  • Water splitting for hydrogen production is vital for storing renewable energy.
  • Solid polymer electrolyte (SPE) water electrolysis offers a practical method for pure hydrogen generation.
  • Efficient electrocatalysts are essential for the oxygen evolution reaction (OER) in SPE electrolysis.

Purpose of the Study:

  • To provide an overview of iridium-based catalysts for OER in SPE water electrolysis.
  • To review strategies for enhancing electrocatalyst activity and stability.
  • To discuss current challenges and future perspectives in the field.

Main Methods:

  • Review of single iridium metal and various iridium oxide catalysts (binary, ternary, multicomponent).
  • Analysis of supported composite iridium catalysts.
  • Examination of strategies to increase active sites and intrinsic activity.

Main Results:

  • Iridium and its oxides exhibit high activity and stability for OER.
  • Strategies like increasing active sites and intrinsic activity significantly improve electrocatalyst performance.
  • Various iridium catalyst formulations show promise for SPE water electrolysis.

Conclusions:

  • Iridium-based catalysts are key for advancing SPE water electrolysis.
  • Further research into catalyst design and optimization is needed.
  • Addressing challenges will accelerate the adoption of hydrogen as a clean energy source.