| 초록 |
In the present abstract, we report the fabrication of rod-shape core-shell particles, in which rod-shape (BaSr)CO3 crystals are coated with a mesoporous silica shell. First, the rod-shape core crystals of (BaSr)CO3 are prepared by the co-crystallization, in which the Sr ions are incorporated to the barium-based matrix. Then, the nano silica particles are allowed to be deposited on the surface of the core crystals, finally fabricating the core-shell structure of the (BaSr)CO3-SiO2 particles in rode shape. The silica shell thickness can be controlled by changing the concentration of TEOS, reaction temperature and hydrodynamic conditions. The influencing factors to the formation of rod-shaped (BaSr)CO3-SiO2 core-shell particles are investigated by using SEM, TEM, powder XRD, and other spectroscopy tools. |
