Synthesis of barium strontium titanate nanorods in reverse microemulsion

Abstract Perovskite Ba 0.7 Sr 0.3 TiO 3 nanorods were synthesized in Triton X-100 reverse microemulsion at room temperature and characterized by XRD, ICP-AES, ED and TEM. The Ba 0.7 Sr 0.3 TiO 3 nanorods with a diameter of 60–100 nm and a length of 450–1200 nm showed a single-crystalline tetragonal structure. The size of nanorods was effectively tuned by changing w value (molar ratio of water to surfactant), aging time and reactant concentration.