Low-temperature synthesis of single-phase crystalline LaNiO3 perovskite via Pechini method
Low-temperature synthesis of single-phase crystalline LaNiO3 perovskite via Pechini method
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DOI：
10.1016/s0167-577x(01)00528-6
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发表时间：
2002-03-01
影响因子：
3
通讯作者：
Bernardi, MIB
中科院分区：
文献类型：
--
作者：
Fernandes, JDG;Melo, DMA;Bernardi, MIB
以聚合物前驱体为原料制备LaNiO3粉体。该材料在流动氧气下或在空气中在300至800摄氏度的温度下煅烧。采用X射线衍射、热重分析、傅里叶变换红外光谱和CHN分析研究了煅烧后新相的形成。结果显示，在低至600摄氏度的温度下形成具有钙钛矿结构的单相粉末。大气对最终产品没有显著影响。(C)2002 Elsevier Science B.V.保留所有权利。
LaNiO3 powders were prepared from polymeric precursors. The material was calcinated either under flowing oxygen or in air at temperatures ranging from 300 to 800 degreesC. The formation of new phases upon calcination was investigated using X-ray diffraction, thermal gravimetric analysis, Fourier-transform infrared spectroscopy and CHN analysis. The results revealed the formation of a single-phase powder having the perovskite structure at temperatures as low as 600 degreesC. The atmosphere did not significantly affect the final product. (C) 2002 Elsevier Science B.V. All rights reserved.