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Related Concept Videos

Ionic Crystal Structures02:42

Ionic Crystal Structures

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Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
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Molecular and Ionic Solids02:54

Molecular and Ionic Solids

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Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
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Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

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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. 
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Ionic Strength: Overview01:12

Ionic Strength: Overview

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The ionic strength of a solution is a quantitative way of expressing the total electrolyte concentration of a solution. This concept was first introduced in 1921 by two American physical chemists, Gilbert N. Lewis and Merle Randall, while describing the activity coefficient of strong electrolytes. During the calculation of ionic strength (I or μ), all the cations and anions are considered. However, the concentration (c) of an ion with a greater charge number (z) has a greater contribution...
1.9K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

64.5K
Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
64.5K
Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

24.5K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
24.5K

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Updated: Sep 27, 2025

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

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Stable Two-dimensional Nanoconfined Ionic Liquids with Highly Efficient Ionic Conductivity.

Mengyang Dong1, Kuiyuan Zhang2, Xinyi Wan1

  • 1State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China.

Small (Weinheim an Der Bergstrasse, Germany)
|April 7, 2022
PubMed
Summary
This summary is machine-generated.

Confining ionic liquids within 2D membranes significantly boosts ionic conductivity by 506% for quasi-liquid solid electrolytes (QLSEs). This nanoconfinement enhances ion transport, enabling safer and more efficient electrochemical energy storage solutions.

Keywords:
ionic conductivityionic liquidsionicitynanoconfinementtwo-dimensional materials

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Growing environmental concerns drive demand for advanced electrochemical energy storage.
  • Quasi-liquid solid electrolytes (QLSEs) offer a promising combination of high ionic conductivity and enhanced safety.
  • Ionic liquids (ILs) are key components in electrolyte development.

Purpose of the Study:

  • To investigate the effect of nanoconfinement on ionic liquid behavior within 2D material membranes.
  • To explore the potential of nanoconfined ILs for improving QLSE performance.
  • To analyze the mechanisms behind enhanced ion transport in nanoconfined systems.

Main Methods:

  • Construction of a QLSE system by confining ionic liquids into 2D materials-based membranes.
  • Experimental measurement of ionic conductivity.
  • Computational simulation to analyze ion diffusion behaviors and molecular distribution.

Main Results:

  • Achieved a maximum ionic conductivity increment of 506% under nanoconfinement.
  • Demonstrated accelerated diffusion of ILs in nanochannels due to promoted dissociation.
  • Observed highly ordered distribution, lower interplay, and higher free volume of nanoconfined ILs compared to bulk.

Conclusions:

  • Nanoconfinement significantly elevates ionic conductivity in ILs within QLSEs.
  • The findings provide insights into nanoconfined ion transport mechanisms.
  • This research offers a pathway for developing highly stable and efficient QLSEs using layered nanomaterials for energy storage.