高等学校化学学报2012，Vol.33Issue(8)：1643-1645,3.DOI:10.3969/j.issn.0251-0790.2012.08.002
共缩聚法制备有序介孔氧化硅纳米螺旋纤维
Synthesis of Novel Mesoporous Silica Twist Nanofibers Through Co-condensation Method
陈曦 1蔡强 1孙林豪 1史卫林 2齐娟娟 1王颂1
作者信息
- 1. 清华大学材料科学与工程系,北京100084
- 2. 兰州大学化学化工学院,兰州730000
- 折叠
摘要
Abstract
Novel mesoporous silica nanofibers(MSNF) were synthesized through co-condensation method, in which two organoalkoxysilanes, tetraethoxylsilane(TEOS) and 3-raercaptopropyl trimethoxysilane ( MPTMS ) as silica precursors simultaneously. The microstructure and porous character of the MSNF were characterized by scanning electron microscopy (SEM) , transmission electron microscopy (TEM) , small-angle X-ray diffraction (XRD) and nitrogen sorption measurements. The results show that the single-axis-twist fibers with diameters of ca. 60—80 nm are obtained. The mesostructure of MSNF corresponds with that of MCM-41 and periodic mesopores fringes are 120 nm. The BET surface area and BJH pore size of the samples are 784 mVg and 2. 36 nm, respectively.关键词
介孔氧化硅/纳米纤维/γ-巯丙基三甲氧基硅烷/共缩聚Key words
Mesoporous silica/ Fiber/ 3-Mercaptopropyl trimethoxysilane/ Co-condensation分类
化学化工引用本文复制引用
陈曦,蔡强,孙林豪,史卫林,齐娟娟,王颂..共缩聚法制备有序介孔氧化硅纳米螺旋纤维[J].高等学校化学学报,2012,33(8):1643-1645,3.
