Details

Autor(en) / Beteiligte

• Wang, Tian Xi
• Liu, Shuang Zhi
• Chen, Jun

Titel

Molten salt synthesis of SrTiO₃ nanocrystals using nanocrystalline TiO₂ as a precursor

Ist Teil von

• Powder technology, 2011-01, Vol.205 (1-3), p.289-291

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A molten salt method was proposed to synthesize SrTiO₃ nanocrystals in the eutectic NaCl–KCl at 700°C for 6h, by using the homemade TiO₂ nanocrystals and commercial Sr(NO₃)₂ powder as raw materials. Besides, a control experiment with the commercial TiO₂ submicron-sized crystallites as a precursor was also conducted. The structure and composition of the obtained products were characterized by powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). The results from XRD and XPS revealed the preparation of pure cubic phase SrTiO₃ powders. The TEM observation demonstrated that the nanocrystalline TiO₂ precursor played an important role in the current molten salt synthesis of SrTiO₃ nanocrystals, which were likely formed by the template formation mechanism.