Development of Synthetic Methods for New Porous Materials by the Conversion of Inorganic Layred Compounds into Three-dimensional Networks

无机层状化合物转化为三维网络新型多孔材料合成方法的进展

• 批准号: 05555173
• 负责人: KURODA Kazuyuki
• 金额: $ 8.9万
• 依托单位: Waseda University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05555173/
• 关键词: Mesoporous Materials; Surface Modification; Intercalation Compounds; Adsorption; Lamellar Phase; Surfactant; Molecular Assembly; 多孔質材料; 吸着特性; 生成メカニズム; 細孔制御; ラメラ相; ヘキサゴナル相; 分子集合体; 多孔体; メソ孔; インターカレーション

1) Reactions between a surfactant hexadecyltrimethylammonium ion (C_<16>TMA^+)and kanemite (NaHSi_2O_5・3H_2O) was studied with various C_<16> TMA^+/Si rations. If C_<16>TMA^+/Si was larger than 0.2, lamellar phase was obtained. Solid-state NMR showed that this phase contained Q^4 silicate species, indicating that this reaction was not topotactic intercalation one. When the reaction proceeded at ambient temperature, the lamellar phase at the intial stage contained no Q^4 silicate species, suggesting that the initial product was intercalation compound. Thus, it is assumed that the initially-formed intercalation compound was converted into a cross-linked structure during the reaction.2) The surface of a porous material derived from kanemite via folded-sheet mechanism was modified by using various silylating reagents. The surface was modified by the reactions with RMe_2SiCl in toluene under protective nitrogen atmosphere. IR,solid-state NMR and DTA showed the successful immobilization of RMe_2Si-groups via siloxane bonding. XRD analysis showed that the structure of the silicate was maintained during the surface modifications. The pore-size distributions indicate that the mean pore size decreased as the length of the alkyl chain increased, suggesting successful control of pore size by surface modification.

1)研究了表面活性剂十六烷基三甲基铵离子（C_<16>TMA^+）在不同C_<16>TMA^+ /Si配比下与kanemite （NaHSi_2O_5·3H_2O）的反应。当C_<16>TMA^+/Si > 0.2时，得到片层相。固体核磁共振表明，该相含有Q^4硅酸，表明该反应不是拓扑插层反应。当反应在室温下进行时，层状相初始阶段不含Q^4硅酸，表明初始产物为插层化合物。因此，可以假设最初形成的插层化合物在反应过程中转化为交联结构。2)采用不同的硅化剂对卡奈米多孔材料进行表面改性。在氮气保护气氛下，与RMe_2SiCl在甲苯中进行表面改性。红外光谱（IR）、固体核磁共振（NMR）和差热分析（DTA）表明rme_2si -基团通过硅氧烷键成功固定。XRD分析表明，在表面改性过程中，硅酸盐的结构保持不变。孔径分布表明，随着烷基链长度的增加，平均孔径减小，表明通过表面改性成功控制了孔径。

项目成果

S. Inagaki,A. Koiwai,N. Suzuki,Y. Fukushima,and K. Kuroda: "Highly Ordered Mesoporous Materials ; FSM-16,Derived from Kanemite-Synthesis and Formation Mechanism" Bull. Chem. Soc. Jpn. (in press).

S.稻垣，A.

S. Inagaki, Y. Yamada, Y. Fukushima, and K. Kuroda: "Synthesis of New Mesoporous Materials by Folding Silicate Sheets" Science & Technology in Catalysis(Stud. Surface Sci. Catal.). 92. 143-148 (1995)

S. Inagaki、Y. Yamada、Y. Fukushima 和 K. Kuroda：“通过折叠硅酸盐片合成新型介孔材料” Science

S. Inagaki,Y. Yamada,Y. Fukushima,and K. Kurodas: "Synthesis of New Mesoporous Materials by Folding silicate Sheets" Science & Technology in Catalysis (Stud. Surface Sci. Catal). 92. 143-148 (1995)

S.稻垣，Y.

S. Inagaki, Y. Fukushima, K. Kuroda, and K. Kuroda: "Adsorption Isotherm of Water Vapor and Its Large Hysteresis on Highly Ordered Mesoporous Silica" J. Colloid Interface Sci.(in press).

S. Inagaki、Y. Fukushima、K. Kuroda 和 K. Kuroda：“水蒸气的吸附等温线及其在高度有序介孔二氧化硅上的大滞后”J. Colloid Interface Sci.（出版中）。

S.Inagaki, Y.Yamada, Y.Fukushima, and K.Kuroda: "Synthesis of New Mesoporous Materials by Folding Silicate Sheets" Science & Technology in Catalysis (Stud.Surface Sci.Catal.). 92. 143-148 (1995)

S.Inagaki、Y.Yamada、Y.Fukushima 和 K.Kuroda：“通过折叠硅酸盐片合成新型介孔材料” Science