This work reports on the investigation of nanosized CeO2-ZnO systems

This work reports on investigating nanosized CeO2-ZnO systems prepared by Pechini's method. The structural and morphological characterization of CeO2-ZnO systems as well as the characterization of CeO2 and ZnO separately, showed that the employed method resulted in powders with spheroidal particles whose sizes are in the range of 30 – 200 nm, which is appropriate to provide homogeneous suspensions. The ZnO present in the prepared mixed oxides seems to increase particle size distribution and influence particle arrangement after powder dispersion. This work reports on investigating nanosized CeO2-ZnO systems prepared by Pechini's method. The structural and morphological characterization of CeO2-ZnO systems as well as the characterization of CeO2 and ZnO separately, showed that the employed method resulted in powders with spheroidal particles whose sizes are in the range of 30 – 200 nm, which is appropriate to provide homogeneous suspensions. The ZnO present in the prepared mixed oxides seems to increase particle size distribution and influence particle arrangement after powder dispersion. Ultrafine nm-sized particles have attracted much attention since they often exhibit physical and chemical properties significantly different from those of bulk materials. In particular, materials with high surface area have importance in two major fields: ceramic science and catalysis. In recent years, nanotechnology has created excitement in a wide array of scientific and financial sectors. Cosmetic chemists may not have realized that their industry has been leading the way in nanotechnology for the last ten years with the use of one of the first nanotechnological products, nanoscaled (<100 nm) inorganic UV absorbers or "nanopowders." Cerium oxide is a major compound in the useful rare earth family and has been applied as a useful glass-polishing material, ultraviolet absorbent, and automotive exhaust promoter. Fine particles of cerium oxide of very small size can become potential new materials that may be useful for fine UV absorbent and high-activity catalysts. Many studies have reported the synthesis of nanosized particles of ceria for various purposes. However, because of its high catalytic activity for the oxidation of organic material, CeO2 has seldom been used commercially as a sunscreen material. So, introducing ZnO should reduce the oxidation catalytic activity of cerium oxide. If you are looking for high quality, high purity and cost-effective CeO2, or if you require the latest price of CeO2, please feel free to email contact mis-asia.