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Ionic Bonding and Electron Transfer02:48

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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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Facile Preparation of Ultrafine Aluminum Hydroxide Particles with or without Mesoporous MCM-41 in Ambient Environments
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Hybridization of layered double hydroxides with functional particles.

Rattanawadee Ploy Wijitwongwan1, Soontaree Grace Intasa-Ard2, Makoto Ogawa1

  • 1School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1 Payupnai, Wangchan, Rayong 21210, Thailand. Makoto.ogawa@vistec.ac.th.

Dalton Transactions (Cambridge, England : 2003)
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Summary

Layered double hydroxides (LDHs) offer versatile anion exchange, redox, and adsorptive properties. This review overviews the preparation, heterostructure, and applications of functionalized LDH hybrids for advanced material design.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemistry

Background:

  • Layered double hydroxides (LDHs) possess unique anion exchange, redox, and adsorptive properties.
  • These properties enable diverse applications, including adsorbents, catalysts, electrodes, pigments, and drug carriers.
  • Tailoring LDH composition, morphology, and employing host-guest interactions are crucial for specific applications.

Purpose of the Study:

  • To provide an overview of the preparation and heterostructure of functionalized materials containing LDHs.
  • To explore the diverse applications of these LDH-based hybrid materials.
  • To highlight the design principles for creating modified, improved, and multifunctional materials.

Main Methods:

  • Review of literature on LDH preparation techniques.
  • Analysis of host-guest interactions for post-synthetic modification.
  • Examination of hybridization strategies combining LDHs with other functional particles.
  • Compilation of application-focused studies on LDH hybrids.

Main Results:

  • LDH preparation can be controlled for specific compositions and morphologies.
  • Post-synthetic modification and hybridization yield materials with enhanced and multiple functionalities.
  • LDH hybrids demonstrate significant potential across various fields, from catalysis to drug delivery.
  • Heterostructure engineering is key to unlocking advanced material properties.

Conclusions:

  • LDH-based hybrids offer a promising platform for developing advanced functional materials.
  • Controlled synthesis and hybridization are essential for tailoring material properties.
  • Further research into LDH hybrids will drive innovation in diverse scientific and technological domains.