Hydrothermal synthesis of NaNbO3—morphology change by starting compounds—
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概要
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Perovskite-type sodium niobate, NaNbO3 was prepared by hydrothermal reaction using an amorphous hydrated niobium oxide (a-Nb2O5). A single phase of perovskite-type NaNbO3 was obtained under the condition of 160°C and 1.0 M NaOH solution, and at higher temperature (≥180°C) cubic shape particles with the size of 5–10 µm were produced. These cubic shape particles had well developed 110 and 001 planes. When other starting compounds, Nb2O5, HNbO3·nH2O and HNb3O8·nH2O were used, well crystallized particles were not obtained. The particles prepared from HNbO3·nH2O and HNb3O8·nH2O had irregular shape and cubic-like shape with the size of 1–5 µm. In the case of Nb2O5 fine particles with the submicron size of ∼0.5 µm were obtained.
- 公益社団法人 日本セラミックス協会の論文
著者
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Dong Qiang
Department of Research Interdisciplinary Graduate School of Medicine and Engineering, University of
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Yonesaki Yoshinori
Department of Research Interdisciplinary Graduate School of Medicine and Engineering, University of
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Kumada N
Interdisciplinary Graduate School Of Medical And Engineering Univ. Of Yamanashi
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Kumada Nobuhiro
Department Of Research Interdisciplinary Graduate School Of Medicine And Engineering University Of Y
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Kinomura Nobukazu
Dep. Of Res. Interdisciplinary Graduate School Of Medicine And Engineering Univ. Of Yamanashi
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Yonesaki Yoshinori
Dep. Of Res. Interdisciplinary Graduate School Of Medicine And Engineering Univ. Of Yamanashi
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Takei Takahiro
Department Of Research Interdisciplinary Graduate School Of Medicine And Engineering
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Kinomura Nobukazu
Department Of Research Interdisciplinary Graduate School Of Medicine And Engineering
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Kumada Nobuhiro
Department of Research Interdisciplinary Graduate School of Medicine and Engineering
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TAKEI Takahiro
Department of Research Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
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KINOMURA Nobukazu
Department of Research Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
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DONG Qiang
Department of Research Interdisciplinary Graduate School of Medicine and Engineering University of Yamanashi
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YONESAKI Yoshinori
Department of Research Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
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YONESAKI Yoshinori
Department of Material Chemistry, Graduate School of Engineering, Kyoto University
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