Effect of Preparation Techniques of LaFeO3 Perovskite-Type Oxide on Its Surface Morphologies

Masahiro FURUKAWA; Takuji ISEYA; Shun ITOH; Akane ANZAI; Keiko SATO; Masato KURIHARA; Masatomi SAKAMOTO; Hiromichi AONO; Yoshihiko SADAOKA; Satoshi HAMAKAWA; Yasushi HOSHI; Fujio MIZUKAMI

doi:10.2109/jcersj2.115.640

Feature: Systematic Synthesis, Assembling Control, and Functional Properties of Rare Earth Materials: Notes

Effect of Preparation Techniques of LaFeO₃ Perovskite-Type Oxide on Its Surface Morphologies

Masahiro FURUKAWA, Takuji ISEYA, Shun ITOH, Akane ANZAI, Keiko SATO, Masato KURIHARA, Masatomi SAKAMOTO, Hiromichi AONO, Yoshihiko SADAOKA, Satoshi HAMAKAWA, Yasushi HOSHI, Fujio MIZUKAMI

Author information

Masahiro FURUKAWA
Graduate School of Science and Engineering, Yamagata University
Takuji ISEYA
Graduate School of Science and Engineering, Yamagata University
Shun ITOH
Graduate School of Science and Engineering, Yamagata University
Akane ANZAI
Department of Material and Biological Chemistry, Faculty of Science, Yamagata University
Keiko SATO
Department of Material and Biological Chemistry, Faculty of Science, Yamagata University
Masato KURIHARA
Graduate School of Science and Engineering, Yamagata University
Department of Material and Biological Chemistry, Faculty of Science, Yamagata University
Masatomi SAKAMOTO
Graduate School of Science and Engineering, Yamagata University
Department of Material and Biological Chemistry, Faculty of Science, Yamagata University
Hiromichi AONO
Department of Materials Science and Engineering, Faculty of Engineering, Ehime University
Yoshihiko SADAOKA
Department of Materials Science and Engineering, Faculty of Engineering, Ehime University
Satoshi HAMAKAWA
Research Center for Compact Chemical Process, National Institute of Advanced Industrial Science and Technology (AIST)
Yasushi HOSHI
Research Center for Compact Chemical Process, National Institute of Advanced Industrial Science and Technology (AIST)
Fujio MIZUKAMI
Research Center for Compact Chemical Process, National Institute of Advanced Industrial Science and Technology (AIST)

Keywords: Perovskite-type oxide, LaFeO₃, Morphology, Surface structure, Porous oxide

JOURNAL FREE ACCESS

2007 Volume 115 Issue 1346 Pages 640-642

DOI https://doi.org/10.2109/jcersj2.115.640

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Abstract

Surface morphology of perovskite-type oxide, LaFeO₃, prepared by thermal decomposition of Fe(III)La(III) heteronuclear coordination polymer, La[Fe(CN)₆]·nH₂O, was compared with those of LaFeO₃ obtained by two conventional preparation methods, solid-state reaction of Fe₂O₃ and La₂O₃ and pyrolysis of a co-precipitated {Fe(OH)₃+La(OH)₃} precursor. At 1273 K, the first method gave LaFeO₃ with submicrometer-sized pores being highly ordered. At the same temperature, the LaFeO₃ particles with various sizes from nano-to micrometer in diameter and the highly sintered LaFeO₃ were obtained by solid state reaction and co-precipitation method, respectively.

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