Solvothermal Synthesis Of Oxygen Group Compounds Of Zinc And Tin Nanomaterials And Template Preparation Of Silver Nanocrystals

The aim of this dissertation is to explore the synthesis of inorganic nanomaterials by hydrothermal method, solvothermal method or template method. The as-prepared inorganic nanomaterials are characterized and their growth mechanism is also proposed. The major contents can be summarized as follows:1. ZnO nanorods were synthesized by hydrothermal method using hydrazine hydrate as the source of alkali. By using PEG2000 and urea, flowerlike ZnO nanostructures constructed with nanowires were prepared by solvothermal route. The products were analyzed by using a Rigaku D/max- rB X-ray diffractometer (XRD), transmission electron microscopy (TEM), electronic diffraction (ED), scanning electron microscopy (SEM), field emission scanning electron microscopy (FESEM), photoluminescence (PL) spectrum. Concentration, temperature and time are important factors to influence the morphology.2. Ag nanorods were prepared by using ZnO nanorods as templates and glucose as reducing agent at room temperature. The samples were analyzed using a Rigaku D/max-rB X-ray diffractometer (XRD), transmission electron microscopy (TEM) and electronic diffraction (ED). Concentration and velocity of reaction are key factors to the final morphology.3. SnS₂ nanomaterials were synthesized by hydrothermal and solvothermal methods. By using SnCl₄·5H₂O and NH4SCN as raw materials, SnS₂ nanoflakes and flowerlike nanostructures were obtained through hydrothermal and solvothermally route, respectively. The products were analyzed by using a Rigaku D/max- rB X-ray diffractometer (XRD), transmission electron microscopy (TEM), electronic diffraction (ED) and field emission scanning electron microscopy (FESEM). And the as-prepared flowerlike SnS₂ nanocrystals were applied and examined as the anode materials of rechargeable lithium-ion batteries. The results showed that morphology of samples is relative to the kinds of solvents.