ABSTRACT

Metal phosphates are valuable materials as pigments, catalysts, adsorbents, ion exchangers, sensors, and bioceramics. Aluminum phosphates are noble porous materials composed of uniform-sized mesopores that are anticipated to be applicable for catalysts with a high selectivity. Zirconium phosphates can be synthesized to have a layered structure in which various inorganic molecules can be intercalated, and the resultant inorganic organic complexes give rise to noble natures. Phosphates of cobalt and nickel are popular violet and green pigments, respectively. Since fine phosphate particles are used in these applications, their functions depend on the morphology and surface structure. In this chapter, the preparation, structure, and properties of various metal phosphate particles are described.