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

来源 :Chinese Chemical Letters | 被引量 : 0次 | 上传用户:houj521
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Dy0.8Sr0.2FeO3 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. Dy0.8Sr0.2FeO3 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. This 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.
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