Preparation of well-ordered nanoporous materials by using the colloidal array of silica nanopsheres

利用二氧化硅纳米球胶体阵列制备有序纳米多孔材料

• 批准号: 21685024
• 负责人: YOKOI Toshiyuki
• 金额: $ 18.05万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (A)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21685024/
• 关键词: ナノ材料; 触媒・化学プロセス; 単分散シリカナノ粒子; メソポーラスシリカ; 単分散シリカ粒子

A liquid-phase method for preparing uniform-sized silica nanospheres(SNSs) 12 nm in size and their three-dimensionally ordered arrangement upon solvent evaporation have recently been pioneered by us. Firts, the successful control of the sphere sizes in the wide range from 14 to 550 nm has been achieved by the seed regrowth method. The confined space synthesis method using the colloidar array of silica nanospheres has been applied to the preparation of sodium tantalate(NaTaO_3); hydrothermal reaction of NaOH and Ta_2O_5 was carried out in the pores of three-dimensional mesoporous carbon, which was replicated by the colloidal array of silica nanospheres(SNSs) 20 nm in size. Trimethylsilylated Ti-containing mesoporous silica nanospheres(Ti-MSNSs) have been successfully prepared. The trimethylsilylation improved a hydrophobicity of the material with its morphology and the coordination of Ti species intact. Thus prepared trimethylsilylated Ti-MSNSs exhibited a higher catalytic performance in the epoxidations of various bulky olefins

我们最近在溶剂蒸发后的液相方法（SNSS）准备了均匀大小的二氧化硅纳米球（SNSS）的液相方法。 FIRT，通过种子再生方法实现了从14到550 nm的球体大小的成功控制。使用二氧化硅纳米球的胶体阵列的限制空间合成方法已应用于诱导钠钠的制备（Natao_3）。 NaOH和TA_2O_5的热液反应在三维介孔碳的孔中进行，这是由二氧化硅纳米球（SNSS）的胶体阵列复制的，大小为20 nm。三甲基硅烷基硅烷二烯烃含有介孔二氧化硅纳米球（TI-MSNS）已成功制备。三甲基硅烷化通过其形态和Ti物种的配位完整地提高了材料的疏水性。因此，制备的三甲基硅烷基硅烷二烯丙基TI-MSNS在各种笨重的烯烃的环氧化中表现出较高的催化性能

项目成果

Extension of size of monodisperse silica nanospheres and their well-ordered assembly

• DOI: 10.1016/j.jcis.2010.09.001
• 发表时间: 2011-08-01
• 期刊: JOURNAL OF COLLOID AND INTERFACE SCIENCE
• 影响因子: 9.9
• 作者: Watanabe, Ryota;Yokoi, Toshiyuki;Tatsumi, Takashi
• 通讯作者: Tatsumi, Takashi

分散シリカ粒子の組織化による多孔質シリカの調製

通过分散二氧化硅颗粒的组织制备多孔二氧化硅

• 发表时间: 2009
• 作者: 小林絵里菜;渡邉亮太;横井俊之;辰巳敬
• 通讯作者: 辰巳敬

鋳型法によるゼオライト粒子の形態制御

使用模板法控制沸石颗粒的形貌

• 发表时间: 2010
• 作者: 水上亜矢子;横井俊之;野村淳子;辰巳敬
• 通讯作者: 辰巳敬

Improvement of beta zeolite catalysts for dehydration of xylose to furfural

木糖脱水制糠醛β沸石催化剂的改进

• 发表时间: 2011
• 作者: Ryoichi Otomo;Takeshi Suzuki;Hiroyuki Imai;Toshiyuki Yokoi;Junko N.Kondo;Takashi Tatsumi
• 通讯作者: Takashi Tatsumi

Preparation and application of colloidal array of silica nanospheres

二氧化硅纳米球胶体阵列的制备及应用

• 发表时间: 2011
• 作者: Toshiyuki Yokoi;Ryota Watanabe;Junko N. Kondo;and Takashi Tatsumi
• 通讯作者: and Takashi Tatsumi