Synthesis And Catalysis Properties Of Nanomaterial Heteropoly Compounds By Room Temperature Solid-state And Liquid Phase Chemical Reaction

Heteropoly compounds, one type of well-known polynuclear metal–oxo cluster, have attracted considerable interest for their application in many materials of catalysis, magnetic materials, nonlinear optical and antiviral activity owning to their unique structure. Currently, many heteropoly compounds-based materials have been reported but nanomaterial heteropoly compounds especially the preparation of 1D nanomaterial heteropoly compounds and special shape heteropoly compounds is a frontier problem in materials field. In this paper, room temperature solid-state chemical reaction, which is a novel approach of preparing nano powder was applied to synthesize nanometer heteropoly compounds. A series of alkylammonium-heteropoly acid compound nanomaterials were synthesis from Keggin-type, Dawson-type thteropoly acid and alkylammonium. The catalysis and photochemistry properties of products were studied. The main content of this paper is divided into three chapters.In the first chapter, CTAB-Keggin heteropoly compounds nanomaterials were synthesized from three Keggin-type heteropoly acids and quaternary alkylammonium series hexadecyltrimethylammonium bromide (CTAB) by one-step solid-state chemical reaction at room temperature and liquid phase reaction. The compositions of products were determined by means of elemental analysis, IR, TG-DTA, XRD and UV, which was observed the morphology of nanomaterials products and their properties. The catalytic properties of the products were determined by the synthesis of dioctylphthalates (DOP). The results show that the catalysts properties of products are good catalyst for the esterification. In the same time, the products were higher catalytic activities via solid-state chemical reaction...