Synthesis of LDH Nanosheets and their Layer-by-Layer Assembly

Title:Synthesis of LDH Nanosheets and their Layer-by-Layer Assembly

Volume: 6 Issue: 3

Author(s): Renzhi Ma and Takayoshi Sasaki

Affiliation:

Keywords: Chemical exfoliation, layered double hydroxides, nanosheets, self-assembly

Abstract: Layered double hydroxides, a rare family of anion-exchangeable functional materials with broad application prospects, have received much attention both in academic research reports and technological patents. It was recently discovered that they could be exfoliated into unilamellar nanosheets in different solvents. Especially, well-defined LDH nanosheets can be obtained through total delamination, in formamide, of large-sized crystallites prepared from homogeneous precipitation using hydrolysis agents. Bearing a positive charge at a two-dimensional molecular scale, layered double hydroxide nanosheets can be used as a model system for electrostatic layer-by-layer assembly in combination with polyanionic counterparts (polymer, DNA, oxide nanosheets, etc.) for various functional nanoarchitectures, such as lamellar aggregates, multilayer nanofilms and nanoshells.

Cite this article as:

Ma Renzhi and Sasaki Takayoshi, Synthesis of LDH Nanosheets and their Layer-by-Layer Assembly, Recent Patents on Nanotechnology 2012; 6 (3) . https://dx.doi.org/10.2174/187221012803531574