共 37 条
Simple synthesis route to monodispersed SBA-15 silica rods
被引:344
作者:

Sayari, A
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Univ Ottawa, CCRI, Dept Chem, Ottawa, ON K1N 6N5, Canada Univ Ottawa, CCRI, Dept Chem, Ottawa, ON K1N 6N5, Canada

Han, BH
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Univ Ottawa, CCRI, Dept Chem, Ottawa, ON K1N 6N5, Canada Univ Ottawa, CCRI, Dept Chem, Ottawa, ON K1N 6N5, Canada

Yang, Y
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机构:
Univ Ottawa, CCRI, Dept Chem, Ottawa, ON K1N 6N5, Canada Univ Ottawa, CCRI, Dept Chem, Ottawa, ON K1N 6N5, Canada
机构:
[1] Univ Ottawa, CCRI, Dept Chem, Ottawa, ON K1N 6N5, Canada
关键词:
D O I:
10.1021/ja0478734
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A simple, flexible, reproducible, high-yielding (ca. 100%) synthesis of hexagonally facetted SBA-15 straight rods with uniform sizes (ca. 1.5 × 0.4 μm) under static conditions without using inorganic salts is provided. This method affords rodlike particles with temperature-dependent pore sizes ranging from 5.8 to 12.5 nm but with similar external dimensions. This work shows that in order to prepare short monodispersed SBA-15 rods, (i) the absence of stirring is essential, (ii) the temperature of the first stage should not exceed 60 °C, and (iii) addition of inorganic salts is not required. Copyright © 2004 American Chemical Society.
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页码:14348 / 14349
页数:2
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