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

G. Shabbir; A. H. Qureshi; K. Saeed

doi:10.1016/j.matlet.2006.03.093

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

G. Shabbir, A. H. Qureshi, K. Saeed

Research output: Contribution to journal › Article › peer-review

58 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	3706-3709
Number of pages	4
Journal	Materials Letters
Volume	60
Issue number	29-30
DOIs	https://doi.org/10.1016/j.matlet.2006.03.093
Publication status	Published - Dec 2006
Externally published	Yes

Keywords

LaFeO
Perovskite-type oxide
Sol-gel
Thermal decomposition

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10.1016/j.matlet.2006.03.093

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title = "Nano-crystalline LaFeO3 powders synthesized by the citrate-gel method",

abstract = "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.",

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author = "G. Shabbir and Qureshi, {A. H.} and K. Saeed",

year = "2006",

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volume = "60",

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journal = "Materials Letters",

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T1 - Nano-crystalline LaFeO3 powders synthesized by the citrate-gel method

AU - Shabbir, G.

AU - Qureshi, A. H.

AU - Saeed, K.

PY - 2006/12

Y1 - 2006/12

N2 - 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.

AB - 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.

KW - LaFeO

KW - Perovskite-type oxide

KW - Sol-gel

KW - Thermal decomposition

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DO - 10.1016/j.matlet.2006.03.093

M3 - Article

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SN - 0167-577X

VL - 60

SP - 3706

EP - 3709

JO - Materials Letters

JF - Materials Letters

IS - 29-30

ER -

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

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Keywords

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