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Lunkenbein, Thomas ; Masliuk, Liudmyla ; Plodinec, Milivoj ; Algara-Siller, Gerardo ; Jung, Sabrina ; Jastak, Mateusz ; Kube, Pierre ; Trunschke, Annette ; Schlögl, Robert:
Site specific and localized structural displacements in open structured multimetallic oxides.
In: Nanoscale.
Bd. 12
(2020)
Heft 12
.
- S. 6759-6766.
ISSN 2040-3372
DOI: https://doi.org/10.1039/c9nr09041j
Abstract
The structures of solids can locally differ from the macroscopic picture obtained by structural averaging techniques. This difference significantly influences the performance of any functional material. Measurements of these local structures are challenging. Thus, the description of defects is often disregarded. However, in order to understand the functionality, such irregularities have to be investigated. Here, we present a high resolution scanning transmission electron microscopic (STEM) study revealing local structural irregularities in open structured oxides using catalytically active orthorhombic (Mo,V,Te,Nb)O-x as a complex example. Detailed analysis of annular dark field- and annular bright field-STEM images reveal site specific local structural displacements of individual framework and channel sites in the picometer range. These experimental observables can be considered as an important structural addendum for theoretical modelling and should be implemented into the existing data in order to quantify site specific potential energies and stresses. This information can further be used to describe the impact of the structure on the catalytic performance in greater detail.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | WOS:000526890300016 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 13 Jun 2025 07:21 |
| Letzte Änderung: | 13 Jun 2025 07:21 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/93704 |