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TEM-tomography of FAU-zeolite crystals containing Pt-clusters

Bovin, J O LU ; Alfredsson, V LU ; Karlsson, G ; Carlsson, A LU ; Blum, Z and Terasaki, O (1996) In Ultramicroscopy 62(4). p.81-277
Abstract

A method for preparing ultrathin sections (- 20 nm) of inorganic solids has been developed using ultramicrotomy of resin-embedded crystal fragments. Undamaged crystals, oriented along a crystallographic direction, could be imaged with transmission electron microscopy (TEM) at a resolution better than 0.5 nm. The true internal structure of the crystals could be investigated by imaging the second in a series of at least three consecutive ultrathin sections. Such TEM-tomography proved that Pt-ion exchanged FAU zeolite crystals, after reduction and oxidation, are occupied internally and randomly of large platinum clusters mainly in the {111-twin planes. TEM-tomography could be useful in man made nanostructures like semiconductors, epitaxial... (More)

A method for preparing ultrathin sections (- 20 nm) of inorganic solids has been developed using ultramicrotomy of resin-embedded crystal fragments. Undamaged crystals, oriented along a crystallographic direction, could be imaged with transmission electron microscopy (TEM) at a resolution better than 0.5 nm. The true internal structure of the crystals could be investigated by imaging the second in a series of at least three consecutive ultrathin sections. Such TEM-tomography proved that Pt-ion exchanged FAU zeolite crystals, after reduction and oxidation, are occupied internally and randomly of large platinum clusters mainly in the {111-twin planes. TEM-tomography could be useful in man made nanostructures like semiconductors, epitaxial thin films, hard metal coatings, ceramics, catalysts, and biomaterials.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Ultramicroscopy
volume
62
issue
4
pages
5 pages
publisher
Elsevier
external identifiers
  • pmid:22666910
  • scopus:0030111118
ISSN
0304-3991
DOI
10.1016/0304-3991(96)00002-2
language
English
LU publication?
yes
id
a0b620ea-2b75-49b1-bff8-b8ca0afc85ab
date added to LUP
2019-05-29 08:49:32
date last changed
2024-01-15 23:37:26
@article{a0b620ea-2b75-49b1-bff8-b8ca0afc85ab,
  abstract     = {{<p>A method for preparing ultrathin sections (- 20 nm) of inorganic solids has been developed using ultramicrotomy of resin-embedded crystal fragments. Undamaged crystals, oriented along a crystallographic direction, could be imaged with transmission electron microscopy (TEM) at a resolution better than 0.5 nm. The true internal structure of the crystals could be investigated by imaging the second in a series of at least three consecutive ultrathin sections. Such TEM-tomography proved that Pt-ion exchanged FAU zeolite crystals, after reduction and oxidation, are occupied internally and randomly of large platinum clusters mainly in the {111-twin planes. TEM-tomography could be useful in man made nanostructures like semiconductors, epitaxial thin films, hard metal coatings, ceramics, catalysts, and biomaterials.</p>}},
  author       = {{Bovin, J O and Alfredsson, V and Karlsson, G and Carlsson, A and Blum, Z and Terasaki, O}},
  issn         = {{0304-3991}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{81--277}},
  publisher    = {{Elsevier}},
  series       = {{Ultramicroscopy}},
  title        = {{TEM-tomography of FAU-zeolite crystals containing Pt-clusters}},
  url          = {{http://dx.doi.org/10.1016/0304-3991(96)00002-2}},
  doi          = {{10.1016/0304-3991(96)00002-2}},
  volume       = {{62}},
  year         = {{1996}},
}