Direct synthesis and characterization of super-microporous SiO<sub>2</sub> with spherical and cylindrical shapes

HU Wenbin; CUI Yingde; YIN Guoqiang; Duncan J Macquarrie; LIAO Liewen; CHEN Xunjun

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Direct synthesis and characterization of super-microporous SiO₂ with spherical and cylindrical shapes

更新时间：2025-12-10

- Direct synthesis and characterization of super-microporous SiO₂ with spherical and cylindrical shapes
- CIESC Journal Issue 8, Pages: 2137-2140(2009)
- 作者机构：
  
  1. 仲恺农业工程学院绿色化工研究所,广东,广州,510225
  2. Centre of Excellence in Green Chemistry,
- 作者简介：
- 基金信息：
- DOI：
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- Online First：05 August 2009，
  
  Published：05 August 2009
- 稿件说明：
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HU Wenbin, CUI Yingde, YIN Guoqiang, et al. Direct synthesis and characterization of super-microporous SiO₂ with spherical and cylindrical shapes[J]. CIESC Journal, 2009, (8): 2137-2140.
DOI：

HU Wenbin, CUI Yingde, YIN Guoqiang, et al. Direct synthesis and characterization of super-microporous SiO₂ with spherical and cylindrical shapes[J]. CIESC Journal, 2009, (8): 2137-2140. DOI：

摘要

以常用的十二烷基胺为模板剂，首次以3－巯丙基－三甲氧基硅烷和三氟甲基三甲基硅烷为共模板剂，在乙氰－水溶剂中，合成了高比面积、高热稳定性、具有球状和柱状新颖形貌的超微孔分子筛，并用氮气吸附脱咐，XRD，FT－IR，SEM和TG－DSC等对其结构进行了表征，推测了合成过程.

Abstract

The direct synthesis of templated super-microporous silica with spherical and cylindrical shapes was achieved in a water/acetonitrile/n-dodecylamine system

using 3-mercaptopropyltrimethoxysilane and 3-trifluoromethyltrimethylsilane as co-template.The benefits of this system to prepare such silicas were high surface area

much enhanced wall thickness

and consequently to greater structural stability.The particles obtained from this route were spherical and cylindrical.The sample was characterized by using N2 adsorption /desorption

XRD

FTIR

SEM

TG-DSC and 13C CP MAS NMR methods，and the process of the direct preparation was given.

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Direct synthesis and characterization of super-microporous SiO2 with spherical and cylindrical shapes

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Direct synthesis and characterization of super-microporous SiO₂ with spherical and cylindrical shapes