Nano Archive

Nano-crystalline LaFeO3 powders synthesized by the citrate-gel method

Shabbir, G and Qureshi, A. H. and Saeed, K (2006) Nano-crystalline LaFeO3 powders synthesized by the citrate-gel method. Materials Letters, 60 (29-30). 3706 - 3709.

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A novel sol–gel process was developed for preparing nano-sized, perovskite-type LaFeO3 powder by the thermal decomposition of the gel-complex of LaFe–(C6H8O7·H2O). The structural evolution has been systematically investigated by X-ray diffraction (XRD), differential thermal analysis (DTA) and thermogravimetric analysis (TGA). Perovskite powder of 25 nm size could be obtained at a temperature of 600 °C without formation of any secondary phases of La2O3 and Fe2O3 single oxides and no requirements of high temperature/vacuum/pH control etc. Analysis of the X-ray powder diffraction data showed a decrease in the value of lattice strains with increasing decomposition temperature, whereas the particle size increases with increasing decomposition temperature.

Item Type:Article
Uncontrolled Keywords:Perovskite-type oxide; Thermal decomposition; LaFeO3; Sol–gel
Subjects:Material Science > Nanofabrication processes and tools
Material Science > Nanostructured materials
ID Code:6773
Deposited By:SPI
Deposited On:06 Feb 2010 12:17
Last Modified:06 Feb 2010 12:17

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