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

Hydrogen Bonds00:26

Hydrogen Bonds

129.9K
Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
129.9K
Hydrogen Bonds01:04

Hydrogen Bonds

13.1K
A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
13.1K
Batteries and Fuel Cells03:12

Batteries and Fuel Cells

30.7K
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...
30.7K
Reduction of Alkenes: Catalytic Hydrogenation02:13

Reduction of Alkenes: Catalytic Hydrogenation

13.9K
Alkenes undergo reduction by the addition of molecular hydrogen to give alkanes. Because the process generally occurs in the presence of a transition-metal catalyst, the reaction is called catalytic hydrogenation.
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
13.9K
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation02:17

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

3.8K
Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
3.8K
Nuclear Fusion02:45

Nuclear Fusion

33.7K
The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
33.7K

You might also read

Related Articles

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

Sort by
Same author

Effect of Ionomer on CO<sub>2</sub> Reduction at Atomically Dispersed Ni─N─C Catalyst.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same author

Aryl ether-free polymer electrolytes for electrochemical and energy devices.

Chemical Society reviews·2024
Same author

Rapid Postgrafting Reaction to Prepare Quaternized Polycarbazoles.

ACS macro letters·2023
Same author

Colloidal Nafion Particles: Are Cylinders Ubiquitous?

ACS macro letters·2023
Same author

Hydrocarbon Ionomeric Binders for Fuel Cells and Electrolyzers.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2023
Same author

Poly(terphenylene) Anion Exchange Membranes: The Effect of Backbone Structure on Morphology and Membrane Property.

ACS macro letters·2022

Related Experiment Video

Updated: Jan 15, 2026

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
06:32

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

Published on: August 17, 2016

20.3K

Making hydrogen production durable.

Yu Seung Kim1

  • 1Materials Synthesis and Integrated Devices (MPA-11), Los Alamos National Laboratory, Los Alamos, NM, USA.

Science (New York, N.Y.)
|October 16, 2025
PubMed
Summary

A novel interphase layer protects polymer electrolytes from degradation caused by electrochemical oxidation in alkaline conditions, enhancing battery stability.

Area of Science:

  • Materials Science
  • Electrochemistry
  • Polymer Science

Background:

  • Polymer electrolytes are crucial for advanced energy storage devices.
  • Electrochemical oxidation limits the operational stability of polymer electrolytes, especially in alkaline environments.
  • Developing protective strategies is essential for improving electrolyte performance.

Purpose of the Study:

  • To investigate the protective effect of an interphase layer on polymer electrolytes.
  • To evaluate the resistance of the interphase-protected electrolyte against electrochemical oxidation in an alkaline medium.

Main Methods:

  • Fabrication of polymer electrolytes with a protective interphase layer.
  • Electrochemical characterization techniques (e.g., cyclic voltammetry, electrochemical impedance spectroscopy) were employed.

More Related Videos

Hydrogen Production and Utilization in a Membrane Reactor
10:00

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

3.1K
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

3.8K

Related Experiment Videos

Last Updated: Jan 15, 2026

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
06:32

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

Published on: August 17, 2016

20.3K
Hydrogen Production and Utilization in a Membrane Reactor
10:00

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

3.1K
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

3.8K
  • Testing was conducted in an alkaline environment.

    • Main Results:

    • The interphase layer effectively shielded the polymer electrolyte from direct contact with the alkaline electrolyte.
    • Significantly reduced electrochemical oxidation of the polymer electrolyte was observed in the presence of the interphase.
    • The protected electrolyte demonstrated enhanced stability under electrochemical stress.

    Conclusions:

    • An interphase layer can successfully prevent electrochemical oxidation of polymer electrolytes in alkaline media.
    • This protective strategy offers a promising approach for developing more durable and reliable polymer electrolyte-based electrochemical devices.
    • Further research into interphase engineering can lead to improved energy storage solutions.