Crossed-discs of mesoporous silica SBA-15 and their carbon replicas

被引：0
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作者：
Feng Li
Jin-Gui Wang
Yu-Ping Liu
Hui-Jing Zhou
Tie-Hong Chen
机构：
[1] Nankai University,Institute of New Catalytic Materials Science, Key Laboratory of Energy
来源：
Journal of Materials Science | 2009年 / 44卷
关键词：
TMOS; Silica Source; Condensation Rate; Carbon Replica; Silica Wall;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Crossed-discs of mesoporous silica SBA-15 were synthesized by using tetramethylorthosilicate (TMOS) as silica source in the presence of Sn2+ cations. The silica crossed-discs were characterized by small-angle X-ray scattering (SAXS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and nitrogen adsorption. All the results show that the materials have hexagonally ordered channels running parallel to the thickness of the discs. The effects of the reaction conditions on the morphology of the materials were discussed. The SBA-15 crossed-discs were used as hard templatesto obtain their carbon replicas.
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页码：6505 / 6511
页数：6
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