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

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

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...

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Veröffentlicht in:Journal of the American Chemical Society 2008-08, Vol.130 (34), p.11510-11517
Hauptverfasser: Tüysüz, Harun, Lehmann, Christian W, Bongard, Hans, Tesche, Bernd, Schmidt, Roland, Schüth, Ferdi
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container_end_page 11517
container_issue 34
container_start_page 11510
container_title Journal of the American Chemical Society
container_volume 130
creator Tüysüz, Harun
Lehmann, Christian W
Bongard, Hans
Tesche, Bernd
Schmidt, Roland
Schüth, Ferdi
description 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.
doi_str_mv 10.1021/ja803362s
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title 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
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