Preparation of perovskite-type oxides from heterometal coordination polymer precursors linked by oxalate ligands, {Sm[M(ox)3]·nH2O}x (M = Fe or Co)

Syuhei YAMAGUCHI; Naoya KIMOTO; Hirotoshi SASAGAWA; Keiko TAKIGUCHI; Takahisa OKUWA; Makiko ASAMOTO; Hidenori YAHIRO

doi:10.2109/jcersj2.121.84

Feature: Ceramics Processing through Energy Consumption Reduction (Green Processing): Papers

Preparation of perovskite-type oxides from heterometal coordination polymer precursors linked by oxalate ligands, {Sm[M(ox)₃]·nH₂O}_x (M = Fe or Co)

Syuhei YAMAGUCHI, Naoya KIMOTO, Hirotoshi SASAGAWA, Keiko TAKIGUCHI, Takahisa OKUWA, Makiko ASAMOTO, Hidenori YAHIRO

Author information

Syuhei YAMAGUCHI
Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University
Naoya KIMOTO
Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University
Hirotoshi SASAGAWA
Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University
Keiko TAKIGUCHI
Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University
Takahisa OKUWA
Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University
Makiko ASAMOTO
Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University
Hidenori YAHIRO
Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University

Keywords: Heterometal coordination polymer precursor, Oxalate ligand, Perovskite-type oxide, Specific surface area

JOURNAL FREE ACCESS

2013 Volume 121 Issue 1409 Pages 84-88

DOI https://doi.org/10.2109/jcersj2.121.84

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Abstract

Two kinds of heterometal coordination polymer precursors, {Sm[M(ox)₃]·nH₂O}_x (M = Fe and Co), were prepared by the reaction of K₃[M(ox)₃]·3H₂O with Sm(NO₃)₃·nH₂O in methanol solvent. These compounds were found to have oxalato-bridged network structure. On the other hand, the desired heterometal coordination polymer precursors could not be obtained by the present preparation method using water solvent. The thermal decomposition behaviors of these d-f heterometal coordination polymer precursors were investigated under air atmosphere. The perovskite-type oxides, SmMO₃ (M = Fe and Co), were found to form in the temperature range of >600°C. The specific surface area of SmFeO₃ powder increased with decreasing calcination temperature of Fe-containing heterometal coordination polymer precursor.

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