HCl as a Key Parameter in Size-Tunable Synthesis of SBA-15 Silica with Rodlike Morphology

被引：27

作者：

Kang, Segoo ^{[2
]}

Chae, Young Bae ^{[3
]}

Yu, Jong-Sung ^{[1
]}

机构：

[1] Korea Univ, Res Team BK21, Dept Adv Mat Chem, Jochiwon 339700, Chung Nam, South Korea

[2] Hannam Univ, Dept Chem, Taejon 305811, South Korea

[3] Korea Inst Geosci & Mineral Resources, Silica Chem Res Div, Taejon 305350, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

SBA-15 Mesoporous Silica; Rodlike Silica Particles; Morphology Control; Acidity; MESOPOROUS MOLECULAR-SIEVES; HIGH-YIELD SYNTHESIS; METHANOL FUEL-CELL; ELECTROCATALYST SUPPORT; DISORDERED ARRAYS; CARBON NANOFIBERS; ORGANOSILICAS; ADSORPTION; TEMPLATES; PARTICLES;

D O I：

10.1166/jnn.2009.J024

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Highly ordered mesoporous SBA-15 silica particles with rodlike morphologies were synthetically controlled for the first time by adjusting hydrochloric acid concentration in the range of 0.1 similar to 5.0 M in the presence of block copolymer template under static condition but with no addition of inorganic salts. This work illustrates that it is possible to achieve a facile, convenient, reproducible high yield synthesis of SBA-15 silica particles with rodlike morphology in a wide range of length scale (0.4-4.5 mu m in length), and it is HCl that plays a key role in regulating the morphological architecture of the mesoporous particles. The acid revealed strong effects not only on mesostuctural properties, but also on macrostructural morphologies of the resulting SBA-15 particles in a wide range of acid concentration (1.0 similar to 3.0 M).

引用

页码：527 / 532

页数：6

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