Synthesis of Single-Crystalline Barium Tetratitanate Nanobelts via Self-Sacrificing Template Process

Single-crystalline BaTi4O9 nanobelts 200-500 nm in width and 30-100 mu m in length have been synthesized by ion exchange between Na2Ti6O13 nanobelts and BaCl2, a so-called self-sacrificing template process. The Na(2)Ti(6)O(13)and BaTi4O9 nanobe ts were charac erized by a range of methods including powder X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy, and selected area electron diffraction. Furthermore, the formation mechanism of BaTi4O9 nanobelts has also been discussed in the viewpoint of the crystal structure.