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Formation of Ordered Structure in Liquid Phase and Its Use for Materials Design. The Control of Pore Structure and Adsorption Characteristics of Mesoporous Silicas.
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- Katoh Masahiro
- Department of Chemical Science and Technology, Faculty of Engineering, The University of Tokushima
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- Kataoka Jyunji
- Department of Chemical Science and Technology, Faculty of Engineering, The University of Tokushima
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- Maegawa Yoshinori
- Department of Chemical Science and Technology, Faculty of Engineering, The University of Tokushima
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- Tomida Tahei
- Department of Chemical Science and Technology, Faculty of Engineering, The University of Tokushima
Bibliographic Information
- Other Title
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- 液相系における構造形成と機能化 メソ多孔性シリカの細孔構造の制御と吸着特性
- メソ多孔性シリカの細孔構造の制御と吸着特性
- メソ タコウセイ シリカ ノ サイコウ コウゾウ ノ セイギョ ト キュウチャク トクセイ
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Description
To modify the adsorption characteristics of the mesoporous silica FSM-16, Al-incorporated FSM-16 (Al-FSM-16) and trimethylsilylated FSM-16 (TMS-FSM-16) were prepared. The pore structureand the adsorption characteristics of these modified mesoporous materials were examined by usingprobe molecules of N2 and CO2. BET surface area of Al-FSM-16 was reduced to 470 m2·g-1, about one-half of the surface area of FSM-16. However, the separation factor for CO2 from CO2-N2 gas mixtures (CO2/N2=20.1/79.9) on Al-FSM-16 was higher than on FSM-16 in the total pressure range from 0.2 to 0.3 MPa. This implies that CO2 is adsorbed selectively to Na+, which is present to compensate for thenegative charge generated by incorporating Al in the framework of the mesoporous silicas. By trimethyl-silylation of FSM-16, 82% of the surface area was covered with trimethylsilyl (TMS) groups, and thepore size decreased to 2.3 nm from the 2.8 nm of FSM-16. Much less CO2 was adsorbed on TMS-FSM-16 than that on FSM-16, possibly due to the smaller amount of free SiOH groups of TMS-FSM-16.
Journal
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- KAGAKU KOGAKU RONBUNSHU
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KAGAKU KOGAKU RONBUNSHU 27 (6), 719-723, 2001
The Society of Chemical Engineers, Japan
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Details 詳細情報について
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- CRID
- 1390282679485317632
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- NII Article ID
- 10007561621
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- NII Book ID
- AN00037234
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- ISSN
- 13499203
- 0386216X
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- NDL BIB ID
- 5992205
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed