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

J O Bovin; V Alfredsson; G Karlsson; A Carlsson; Z Blum; O Terasaki

doi:10.1016/0304-3991(96)00002-2

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

J O Bovin, V Alfredsson, G Karlsson, A Carlsson, Z Blum, O Terasaki

Research output: Contribution to journal › Article › peer-review

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 thin films, hard metal coatings, ceramics, catalysts, and biomaterials.

Original language	English
Pages (from-to)	277-81
Number of pages	5
Journal	Ultramicroscopy
Volume	62
Issue number	4
DOIs	https://doi.org/10.1016/0304-3991(96)00002-2
Publication status	Published - 1996 Mar

Subject classification (UKÄ)

Physical Chemistry (including Surface- and Colloid Chemistry)

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10.1016/0304-3991(96)00002-2

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@article{a0b620ea2b7549b1bff8b8ca0afc85ab,

title = "TEM-tomography of FAU-zeolite crystals containing Pt-clusters",

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 thin films, hard metal coatings, ceramics, catalysts, and biomaterials.",

author = "Bovin, {J O} and V Alfredsson and G Karlsson and A Carlsson and Z Blum and O Terasaki",

year = "1996",

month = mar,

doi = "10.1016/0304-3991(96)00002-2",

language = "English",

volume = "62",

pages = "277--81",

journal = "Ultramicroscopy",

issn = "0304-3991",

publisher = "Elsevier",

number = "4",

}

TY - JOUR

T1 - TEM-tomography of FAU-zeolite crystals containing Pt-clusters

AU - Bovin, J O

AU - Alfredsson, V

AU - Karlsson, G

AU - Carlsson, A

AU - Blum, Z

AU - Terasaki, O

PY - 1996/3

Y1 - 1996/3

N2 - 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.

AB - 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.

U2 - 10.1016/0304-3991(96)00002-2

DO - 10.1016/0304-3991(96)00002-2

M3 - Article

C2 - 22666910

SN - 0304-3991

VL - 62

SP - 277

EP - 281

JO - Ultramicroscopy

JF - Ultramicroscopy

IS - 4

ER -

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

Abstract

Subject classification (UKÄ)

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