Direct imaging of surface topology and pore system of ordered mesoporous silica (MCM-41, SBA-15, and KIT-6) and nanocast metal oxides by high resolution scanning electron microscopy

被引：177
作者：
Tueysuez, Harun [1 ]
Lehmann, Christian W. [1 ]
Bongard, Hans [1 ]
Tesche, Bernd [1 ]
Schmidt, Roland [2 ]
Schueth, Ferdi [1 ]
机构：
[1] MPI Kohlenforsch, D-45470 Mulheim, Germany
[2] Hitachi High Technol Europe GmbH, D-47807 Krefeld, Germany
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 34期
关键词：
D O I：
10.1021/ja803362s
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We report here a detailed study on the surface topology of well-known ordered mesoporous silica (SBA-15, MCM-41, and KIT-6) and a series of nanocast Co3O4, Co3O4/CoFe2O4 composites by high resolution scanning electron microscopy (HR-SEM). Images of the MCM-41 structure were obtained at a resolution of the pore size, as well as a real space image of the gyroid silica surface of KIT-6 for two different aging temperatures, clearly revealing the differences of the aging procedures. By using the low voltage HR-SEM technique with extremely high resolution, we could very clearly show the influence of the template properties on the structure of the nanocast metal oxides.
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收藏
页码：11510 / 11517
页数：8
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