書誌事項
- タイトル別名
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- Porous Properties of Activated Alumina Obtained from Polyhydroxoaluminum-Tetramethylammonium Ion Composite Gels.
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抄録
Polyhydroxoaluminum (PHA) solutions produced transparent gels on drying. These gels were transformed into activated aluminas upon heating. To obtain activated alumina having uniform pores, various amounts of tetramethylammonium chloride (TM) were added to the PHA solutions followed by drying to form PHA-TM composite gels. The γ-alumina obtained from the composite gels having ≥30% TM content showed a sharp monomodal pore size distribution in the range of 3 to 4nm, depending on the heating temperature in the range of 400 to 900°C. The γ-alumina gave the highest pore volume of 0.25cm3·g-1 at 400°C. On the other hand, the γ-aluminas obtained from the composite gels having TM content below 20% showed a bimodal pore size distribution in the range from 3 to 8nm. These results indicate that pore sizes of γ-alumina can be precisely controlled by the heating temperature for composite gels having ≥30% TM content.
収録刊行物
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- Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌)
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Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌) 108 (1263), 960-965, 2000
公益社団法人 日本セラミックス協会
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詳細情報 詳細情報について
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- CRID
- 1390001205248274944
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- NII論文ID
- 110002289938
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- NII書誌ID
- AN10040326
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- ISSN
- 18821022
- 09145400
- http://id.crossref.org/issn/09145400
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- NDL書誌ID
- 5542324
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可