Citation: Zun Li MO, Hong CHEN, Kun Jie WANG, Zheng Hai SHI, He Jun LI. The Preparation of Perovskite Nano Powder by Sol-gel from DTPA and the Mechanism of Thermal Decomposition[J]. Chinese Chemical Letters, ;2004, 15(6): 721-724. shu

The Preparation of Perovskite Nano Powder by Sol-gel from DTPA and the Mechanism of Thermal Decomposition

1.
College of Material science and Engineering. Northwestern Politechnical University, Xi'an 710072;
2.
College of Chemistry and Chemical Engineering. Northwest Normal University, Lanzhou 730070

Received Date: 26 May 2003

Fund Project: This work was financially supported by The National Natural Science Foundation of China (29875018), the Natural Science Foundation of Gansu Province (ZS991-A25-008-Z) and the Doctorate Foundation of Northwestern Politechnical University(CX200309).

Dy_0.8Sr_0.2FeO₃ nano powder, a synthetic oxide, is made by sol-gel method from metal nitrate and diethylenetriaminepentaacetic acid (DTPA), and the processing parameters are optimized. The process of the preparation, thermal decomposition and the property of the powder are studied by TG-DTA, IR, TEM, and XRD. The diameter of the average grain is about 70 nm. This new technique can be used in the preparation and the studying of na'no materials in the complex oxide system.
- Nano powder,
- sol-gel,
- perovskite,
- diethylenetriaminepentaacetic acid
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