Solution-based Synthesis, Characterization And Property Investigation Of Molybdate Nanomaterials

Shape-/size-controlled synthesis of nanoparticles is one of the most important parts of nanotechnology and nanosicence, and also the base of investigating the distinctive properties and applications of nanostructures. This thesis studied solution-based controlled synthesis of typical functional molybdates nanostructures, emphasizing on the relationship between the shape and properties of the obtained nanoparticles.In the aspect of exploring dimension and shape controlled synthesis of hollow nanostructures, obtained a series of different size CaMoO₄ hollow spheres and hollow spindles, expanded the area of control synthesis of hollow nanostructures by microemulsions route. The relationship between the shape / size of CaMoO₄ nanostructures and its properties was initially investigated. Using long-chain cationic surfactant CTAB as soft structure temple, control synthesized CaMoO₄ three-dimension (3D) flower-like nanostructures, which is self-assembled by one-dimension (1D) nanorods.Novel 3D flower-like SrMoO₄ nanostructures which constructed by nanospindles were obtained in the TritionX-100 microemulisons under room-temperature circumstance, and in the CTAB microemulsions, control synthesized 2D quasi-square shaped SrMoO₄ nanostructures. Some distinctive optical characteristics were found on the nanoplates.By the way of manipulated parameters of solution-based reaction system, synthesized a series of size-controlled tetragonal BaMoO₄ and CdMoO₄ octahedron. And the synthesized regular octahedron revealed the existence of relationship between nanocrystals growth behavior and crystal symmetry.On the bases of its excellent performance and its wide use in various fileds, we have manipulated synthesis 1D MnMoO₄·H₂O nanorods and novel 3Dα-NiMoO₄ microhombohedra via room-temperature microemulsions route and hydrothermal assisted microemulsions process, respectively.