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Title
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Three-dimensional transmission electron microscopy of disordered and ordered mesoporous materials
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Author
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Abstract
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| The use of 3D-TEM, in particular electron tomography, for the characterisation of mesoporous materials is introduced. In 3D-TEM a tilt series of the specimen collected in bright field mode comprises typically 150 images over tilt angles ranging from -70degrees to +70degrees. The tilt series are used to calculate a full 3D- image reconstruction of the specimen in question. The first example delt with comprises the study of zeolite Y crystals that contain mesopores. The pore shape, size and connectivity of the zeolite Y crystal is obtained with great clarity and detail. The second example involves SBA-15 materials. The curved nature of the pores in the particles of SBA-15 is clearly demonstrated from tilt series. |
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Language
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English
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Source (journal)
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Studies in surface science and catalysis. - Amsterdam
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Source (book)
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3rd International Mesostructured Materials Symposium, JUL 08-11, 2002, JEJU ISL, SOUTH KOREA
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Publication
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Amsterdam
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2003
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ISBN
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0-444-51434-1
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Volume/pages
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146
(2003)
, p. 271-274
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ISI
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000184568300064
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