|
|||||
|
|
Phase transformation behavior of zinc metastannates obtained by aqueous precipitation at different temperatures |
|
| Authors: | Muna H Al-Hinai Ashraf T Al-Hinai Joydeep Dutta |
| Affiliation: | 1. Department of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, 123, Al Khoud, Sultanate of Oman 2. Water Research Center, Sultan Qaboos University, 123, Al Khoud, Sultanate of Oman 3. Department of Chemistry, College of Science, Sultan Qaboos University, 123, Al Khoud, Sultanate of Oman |
| Abstract: | Phase transformation studies in ZnO–SnO2 system from zinc metastannate (ZnSnO3) to zinc orthostannate (Zn2SnO4) with annealing temperature are reported. Non-centrosymmetric oxides show unique symmetry dependent and spontaneous polarization properties, which are technologically important. ZnSnO3 particles were synthesized by a simple aqueous synthesis at low temperatures designed with the assistance of potential–pH diagrams. ZnSnO3 particles synthesized at 4 °C are more porous losing the ilmenite structure upon annealing at 200 °C, while the other samples prepared at higher temperatures (25–65 °C) becomes amorphous at 300 °C. The phase transformation into the inverse spinel orthostannate phase occurs around 750 °C in all the samples. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |