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

Bond Polarity, Dipole Moment, and Percent Ionic Character02:48

Bond Polarity, Dipole Moment, and Percent Ionic Character

37.3K
Bond Polarity
37.3K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

56.2K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions. 
56.2K
The Debye–Hückel Theory of Electrolyte Solutions01:27

The Debye–Hückel Theory of Electrolyte Solutions

303
The Debye–Hückel theory, established by Peter Debye and Erich Hückel in 1923, is a fundamental concept in physical chemistry. It provides an understanding of the behavior of strong electrolytes in solution, particularly explaining their deviations from ideal behavior.The theory is based on Coulombic interactions (the attraction or repulsion between charged particles) between ions in solution. In an ionic solution, oppositely charged ions tend to attract each other. This means...
303
Debye–Huckel–Onsager Conductance Equation01:28

Debye–Huckel–Onsager Conductance Equation

261
The Debye-Hückel-Onsager equation is a cornerstone of physical chemistry, providing a method to determine the molar conductance (Λm) and molar conductance at infinite dilution (Λ°m) for uni-univalent electrolytes.Uni-univalent electrolytes are electrolytes that dissociate in solution to produce one cation with a +1 charge and one anion with a –1 charge per formula unit.This equation addresses two crucial phenomena: the asymmetry effect and the electrophoretic effect.
261
Ionic Association01:28

Ionic Association

202
The ionic association is the association of oppositely charged ions in an electrolyte solution to form ion pairs. Bjerrum defined ion pairs as two oppositely charged ions whose electrostatic attraction exceeds the thermal energy of the system, typically expressed as 2kT. Electrostatic attraction depends on ionic charge, separation distance, and the dielectric constant of the medium. Thermal energy, represented by kT, reflects the tendency of ions to move independently due to molecular motion.
202
Valence Bond Theory02:42

Valence Bond Theory

11.9K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
11.9K

You might also read

Related Articles

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

Sort by
Same author

Structural Distortions and Magnetic Ordering in <i>Ae</i><sub>2</sub>FeO<sub>3</sub>Cu<i>Ch</i> (<i>Ae</i> = Ca, Sr; <i>Ch</i> = S, Se) Oxide Chalcogenides.

Inorganic chemistry·2026
Same author

Oxygen Cycling in Half-Doped Ln<sub>1-<i>x</i></sub> Sr <sub><i>x</i></sub> CoO<sub>3-δ</sub> Cobalt Perovskite Oxides and an In Situ Neutron Diffraction Study of Pr<sub>0.5</sub>Sr<sub>0.5</sub>CoO<sub>3-δ</sub>.

ACS omega·2026
Same author

Combined Neutron and X-Ray Diffraction Study of Ibuprofen and Atenolol Adsorption in Zeolite Y.

Molecules (Basel, Switzerland)·2026
Same author

Structural and Electrochemical Investigation of Ni- and Mn-Based Disordered Rock Salt Cathode Materials without <i>d</i><sup>0</sup> Elements.

ACS applied materials & interfaces·2026
Same author

Impact of structural coherence and disorder on the ionic transport and lattice dynamics in Li<sup>+</sup>-conducting argyrodites.

Journal of materials chemistry. A·2025
Same author

Correction to "Competing Magnetism in Layered Mixed Transition Metal Chalcogenides KCo<sub>2-<i>x</i></sub> Ni <sub><i>x</i></sub> Se<sub>2</sub>, KCo<sub>2-<i>x</i></sub> Ni <sub><i>x</i></sub> S<sub>2</sub>, and CsCo<sub>2-<i>x</i></sub> Ni <sub><i>x</i></sub> Se<sub>2</sub>".

Chemistry of materials : a publication of the American Chemical Society·2025

Related Experiment Video

Updated: Apr 19, 2026

Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique
12:02

Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique

Published on: November 3, 2017

13.8K

High H⁻ ionic conductivity in barium hydride.

Maarten C Verbraeken1, Chaksum Cheung1, Emmanuelle Suard2

  • 1School of Chemistry, University of St Andrews, St Andrews KY16 9ST, UK.

Nature Materials
|December 9, 2014
PubMed
Summary

Barium hydride exhibits rapid hydride ion transport, offering potential for advanced electrochemical applications. This discovery highlights alkaline-earth hydrides as a promising new class of ionic conductors for renewable energy technologies.

More Related Videos

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

69.8K
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

20.6K

Related Experiment Videos

Last Updated: Apr 19, 2026

Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique
12:02

Determination of Thermodynamic Properties of Alkaline Earth-liquid Metal Alloys Using the Electromotive Force Technique

Published on: November 3, 2017

13.8K
From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

69.8K
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

20.6K

Area of Science:

  • Materials Science
  • Solid-State Chemistry
  • Renewable Energy

Background:

  • Hydrogen is a key renewable energy vector, necessitating materials with efficient hydrogen transport.
  • Ionic conductivity is crucial for the performance of electrochemical devices.
  • Heavy alkaline-earth hydrides are typically overlooked for hydrogen storage due to low gravimetric density.

Purpose of the Study:

  • To investigate the ionic transport properties of heavy alkaline-earth hydrides.
  • To determine the charge carriers responsible for conductivity in these materials.
  • To explore the potential of barium hydride as an electrolyte material for electrochemical applications.

Main Methods:

  • High-temperature conductivity measurements of barium hydride (BaH2).
  • Analysis of ionic transport in the high-temperature, high-symmetry phase of BaH2.
  • Comparison of conductivity with existing state-of-the-art ionic conductors.

Main Results:

  • Barium hydride demonstrates fast pure ionic transport of hydride ions (H(-)).
  • Achieved a hydride ion conductivity of 0.2 S cm(-1) at 630 °C.
  • This conductivity is significantly higher than that of leading proton or oxide ion conductors at similar temperatures.

Conclusions:

  • Alkaline-earth hydrides represent a new and important class of materials for ionic conduction.
  • Barium hydride exhibits promising properties for applications requiring fast hydride ion transport.
  • Potential applications include separation membranes and electrochemical reactors.