Thermal evolution of the microstructure of nanosized LaFeO3 powders from the thermal decomposition of a heteronuclear complex, La[Fe(CN)6] · 5H2O

Enrico Traversa; Patrizia Nunziante; Masatomi Sakamoto; Yoshihiko Sadaoka; Maria Cristina Carotta; Giuliano Martinelli

doi:10.1557/JMR.1998.0189

Thermal evolution of the microstructure of nanosized LaFeO₃ powders from the thermal decomposition of a heteronuclear complex, La[Fe(CN)₆] · 5H₂O

Enrico Traversa^*, Patrizia Nunziante, Masatomi Sakamoto, Yoshihiko Sadaoka, Maria Cristina Carotta, Giuliano Martinelli

^*Corresponding author for this work

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

61 Scopus citations

Abstract

The thermal decomposition of a heteronuclear complex, La[Fe(CN)₆] · 5H₂O, leads to the preparation of nanosized single-phase perovskite-type LaFeO₃ powders. The microstructural evolution of LaFeO₃ with the temperature has been studied by x-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The product of the decomposition at 500°C consists of nanoporous grains which have the morphology of the complex, but diffracting as a monocrystal of LaFeO₃. At the higher temperatures, the nanosized particles start to separate from each other, still keeping the shape of the complex grains and forming soft agglomerates. The formation of LaFeO₃ from the complex at low temperatures is facilitated by the formation of an orthorhombic transition phase.

Original language	English (US)
Pages (from-to)	1335-1344
Number of pages	10
Journal	Journal of Materials Research
Volume	13
Issue number	5
DOIs	https://doi.org/10.1557/JMR.1998.0189
State	Published - May 1998
Externally published	Yes

Bibliographical note

Funding Information:
The present work was supported by a Grant-in-Aid for Scientific Research on Priority Areas “New Development of Rare Earth Complexes” No. 07230267 from the Ministry of Education, Science and Culture of Japan, and partly by the National Research Council of Italy (CNR), under the auspices of the Strategic Project “Innovative Materials”.

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1557/JMR.1998.0189

Cite this

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title = "Thermal evolution of the microstructure of nanosized LaFeO3 powders from the thermal decomposition of a heteronuclear complex, La[Fe(CN)6] · 5H2O",

abstract = "The thermal decomposition of a heteronuclear complex, La[Fe(CN)6] · 5H2O, leads to the preparation of nanosized single-phase perovskite-type LaFeO3 powders. The microstructural evolution of LaFeO3 with the temperature has been studied by x-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The product of the decomposition at 500°C consists of nanoporous grains which have the morphology of the complex, but diffracting as a monocrystal of LaFeO3. At the higher temperatures, the nanosized particles start to separate from each other, still keeping the shape of the complex grains and forming soft agglomerates. The formation of LaFeO3 from the complex at low temperatures is facilitated by the formation of an orthorhombic transition phase.",

author = "Enrico Traversa and Patrizia Nunziante and Masatomi Sakamoto and Yoshihiko Sadaoka and Carotta, {Maria Cristina} and Giuliano Martinelli",

note = "Funding Information: The present work was supported by a Grant-in-Aid for Scientific Research on Priority Areas “New Development of Rare Earth Complexes” No. 07230267 from the Ministry of Education, Science and Culture of Japan, and partly by the National Research Council of Italy (CNR), under the auspices of the Strategic Project “Innovative Materials”.",

year = "1998",

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AU - Traversa, Enrico

AU - Nunziante, Patrizia

AU - Sakamoto, Masatomi

AU - Sadaoka, Yoshihiko

AU - Carotta, Maria Cristina

AU - Martinelli, Giuliano

N1 - Funding Information: The present work was supported by a Grant-in-Aid for Scientific Research on Priority Areas “New Development of Rare Earth Complexes” No. 07230267 from the Ministry of Education, Science and Culture of Japan, and partly by the National Research Council of Italy (CNR), under the auspices of the Strategic Project “Innovative Materials”.

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AB - The thermal decomposition of a heteronuclear complex, La[Fe(CN)6] · 5H2O, leads to the preparation of nanosized single-phase perovskite-type LaFeO3 powders. The microstructural evolution of LaFeO3 with the temperature has been studied by x-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The product of the decomposition at 500°C consists of nanoporous grains which have the morphology of the complex, but diffracting as a monocrystal of LaFeO3. At the higher temperatures, the nanosized particles start to separate from each other, still keeping the shape of the complex grains and forming soft agglomerates. The formation of LaFeO3 from the complex at low temperatures is facilitated by the formation of an orthorhombic transition phase.

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