Chemical Reviews· 2012Q1· Review
Recent Advances in the Synthesis and Application of Layered Double Hydroxide (LDH) Nanosheets
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- Q1SCImago
- 2012year
Short summary
Layered double hydroxides (LDHs) can be delaminated into positively charged nanosheets, enabling their use as nanocomposites or building blocks for novel materials.
AI-generated from the title and abstract; the full text is not read.
Key points
- LDHs are ionic lamellar compounds with positively charged brucite-like layers and interlayer anions/solvation molecules.
- Delamination of LDHs yields positively charged nanosheets suitable for nanocomposites and nanomaterial design.
- Synthesis methods include bottom-up and top-down approaches, involving interlamellar modification and solvent selection.
- Interdigitation of anions like DDS- maximizes guest-guest interactions within LDHs.
- Reverse microemulsion methods can also produce LDH colloids.
AI-generated from the title and abstract; the full text is not read.
Abstract
Layered double hydroxides (LDHs) are a class of ionic lamellar compounds made up of positively charged brucite-like layers with an interlayer region containing charge compensating anions and solvation molecules. Delamination of LDHs is an interesting route for producing positively charged thin platelets with a thickness of a few atomic layers, which can be used as nanocomposites for polymers or as building units for making new designed organic-inorganic or inorganic-inorganic nanomaterials. The synthesis of nanosized LDH platelets can be generally classified into two approaches, bottom-up and top-down. It requires modification of the LDH interlamellar environment and then selection of an appropriate solvent system. In DDS intercalated LDHs, the aliphatic tails of the DDS- anions exhibit a high degree of interdigitation in order to maximize guest-guest dispersive interactions. Bellezza reported that the LDH colloids can also been obtained by employing a reverse microemulsion approach.
The authors' abstract, as published at the source. Chemical Reviews, 2012 · DOI ↗
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Field: Materials Chemistry
Materials ChemistryMaterials Science