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Related Concept Videos

Ionic Radii03:10

Ionic Radii

33.4K
Ionic radius is the measure used to describe the size of an ion. A cation always has fewer electrons and the same number of protons as the parent atom; it is smaller than the atom from which it is derived. For example, the covalent radius of an aluminum atom (1s22s22p63s23p1) is 118 pm, whereas the ionic radius of an Al3+ (1s22s22p6) is 68 pm. As electrons are removed from the outer valence shell, the remaining core electrons occupying smaller shells experience a greater effective nuclear...
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Ionic Bonds00:42

Ionic Bonds

129.6K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
129.6K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

20.0K
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...
20.0K
Ionic Compounds: Formulas and Nomenclature03:34

Ionic Compounds: Formulas and Nomenclature

86.3K
An element composed of atoms that readily lose electrons (a metal) can react with an element composed of atoms that readily gain electrons (a nonmetal) to produce ions through complete electron transfer. The compound formed by this transfer is stabilized by the electrostatic attractions (ionic bonds) between the oppositely charged ions.
86.3K
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

68.1K
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.
68.1K
Ionic Crystal Structures02:42

Ionic Crystal Structures

16.9K
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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Updated: Jan 24, 2026

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
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A uranium capture strategy based on self-assembly in a hydroxyl-functionalized ionic liquid extraction system.

Baihua Chen1, Kaige Wu, Yanqiu Yang

  • 1Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Sichuan, Mianyang, 621999, P. R. China. pengshuming@caep.cn.

Chemical Communications (Cambridge, England)
|May 29, 2019
PubMed
Summary
This summary is machine-generated.

A new self-assembly method efficiently captures uranium in ionic liquids. This technique enables one-step separation and solidification of uranium, advancing metal ion separation and supramolecular chemistry.

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Area of Science:

  • Supramolecular Chemistry
  • Materials Science
  • Nuclear Chemistry

Background:

  • Uranium extraction and separation are critical in nuclear fuel cycles and environmental remediation.
  • Conventional methods often involve multiple steps and generate significant waste.
  • Developing efficient and environmentally benign separation techniques is a priority.

Purpose of the Study:

  • To develop a novel and efficient uranium capture strategy.
  • To achieve one-step separation and solidification of uranium using self-assembly in ionic liquids.
  • To explore the mechanistic and applied aspects of supramolecular assembly in metal ion separation.

Main Methods:

  • Utilized an ionic liquid extraction system for uranium capture.
  • Employed a self-assembly strategy for uranium separation and solidification.
  • Investigated the supramolecular assembly mechanism.

Main Results:

  • Successfully developed an efficient uranium capture strategy based on self-assembly.
  • Achieved one-step separation and solidification of uranium.
  • Demonstrated the potential for separating various metal ions.

Conclusions:

  • The developed self-assembly strategy offers a promising method for uranium capture and separation.
  • This approach advances the understanding and application of supramolecular assembly in materials science.
  • The ionic liquid extraction system provides an efficient route for nuclear waste management and metal recovery.