Chemical Synthesis And Control Of Lamellar Inorganic Nanostructures

Micron and nanoscale inorganic structures refer to materials that have relevant dimensions on the nanometer and micronmeter length scales. These strucures have unique physical properties that are distinctly different from bulk materials. Self-assembled micron and nanoscale structures provide a systematic coverage of all basic principles of self-assembly science and technology including materials assembly and synthesis, characterization, and application, which balance the chemistry aspects of materials with physical principles. Solution-based routes were developed to realize the chemical synthesis and simultaneous assembly of novel micron and nanoscale structures. The formation mechanisms of different morphologies are analyzed in the view of the crystal structures and the crystal growth habits. The simple solution-based chemical routes were developed to control the conversion of the inorganic lamellar nanostructures. The main points are summarized as follows:1. Low temperature hydrothermal synthesis of ZnO nanodisk arrays and A100H nanobelts utilizing self-assembly of surfactant molecules at solid-liquid interfaces.ZnO nanodisk arrays have been prepared by utilizing cooperative surface assembly of surfactants and inorganic species at the solid-liquid interfaces under the lower temperature. By expanding the above method, ultrasmall ten-nanometer-wide boehmite single-crystal nanobelts have been prepared by a simple and efficient "molecule tailoring lamella" route with clear advantages over the traditional high-temperature approach for the large-scale production of 1-D nanomaterials. This novel method has been successfully applied to other ultrasmall hydroxyl nanobelts, such as FeOOH, InOOH.2. From 2D nanoflats to 2D nanowire networks: a novel hyposulfite self-decomposition route to semiconductor FeS₂ nanowebs.A novel strategy has been put forward to prepare two-dimensional (2D) sulfide nanowebs using a simple hyposulfite self-decomposition route. As an example, semiconductor FeS₂ monocrystalline 2D nanowebs were prepared, in which we demonstrate that complex geometrical objects of micro- and nanoscales can be prepared by a simple and template-free solution route. The XRD, TEM, FESEM and...