Sorption of divalent Fe, Co, Ni, and mixed-valent Fe into mesoporous silica grafted with an aminopropyl group, and their adsorption properties
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概要
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A reflux process was carried out for hybridization of aminopropyl-grafted mesoporous silica and metal cations at 110 and 140°C. For the sample hybridized with Fe2+, Co2+ and Ni2+, magnetite, Co2(OH)3Cl, and Ni2(OH)2CO3·4H2O particles of approx. 5-30 nm in diameter were formed. The amount of metal compounds was approx. 9-12 mol%. These compounds formed a porous aggregate on the outer surface of the mesoporous silica particles. For the hybrid with Fe2+ and Fe3+, magnetite approx. 3 nm in diameter formed not only on the outer surface but also within the mesopores derived from the mesoporous silica. The amount of magnetite achieved approx. 30 mol%. This hybrid shows an O2 adsorption property three times as high as the other samples. These results demonstrate that nanoscale magnetite shows significant O2 adsorption competence at room temperature.
- 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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Takei Takahiro
Dep. Of Res. Interdisciplinary Graduate School Of Medicine And Engineering Univ. Of Yamanashi
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Kumada N
Interdisciplinary Graduate School Of Medical And Engineering Univ. Of Yamanashi
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Takei Takahiro
Center for Crystal Science and Technology, Interdisciplinary Graduate School of Medicine and Enginee
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Yonesaki Yoshinori
Center for Crystal Science and Technology, Interdisciplinary Graduate School of Medicine and Enginee
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Kumada Nobuhiro
Center for Crystal Science and Technology, Interdisciplinary Graduate School of Medicine and Enginee
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KINOMURA Nobukazu
Center for Crystal Science and Technology, Interdisciplinary Graduate School of Medicine and Enginee
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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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Yonesaki Yoshinori
Center For Crystal Science And Technology University Of Yamanashi
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TAKEI Takahiro
Center for Crystal Science and Technology, Faculty of Engineering, University of Yamanashi
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KINOMURA Nobukazu
Center for Crystal Science and Technology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
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KINOMURA Nobukazu
Center for Crystal Science and Technology, Faculty of Engineering, University of Yamanashi
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KUMADA Nobuhiro
Center for Crystal Science and Technology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
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KUMADA Nobuhiro
Center for Crystal Science and Technology, Faculty of Engineering, University of Yamanashi
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YONESAKI Yoshinori
Center for Crystal Science and Technology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
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