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  Site specific and localized structural displacements in open structured multimetallic oxides

Lunkenbein, T., Masliuk, L., Plodinec, M., Algara-Siller, G., Jung, S., Jastak, M., et al. (2020). Site specific and localized structural displacements in open structured multimetallic oxides. Nanoscale, 12(12), 6759-6766. doi:10.1039/c9nr09041j.

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 Creators:
Lunkenbein, Thomas1, Author           
Masliuk, Liudmyla1, Author           
Plodinec, Milivoj1, Author           
Algara-Siller, Gerardo1, Author           
Jung, Sabrina2, Author           
Jastak, Mateusz2, Author           
Kube, Pierre2, Author           
Trunschke, Annette1, Author           
Schlögl, Robert1, 3, Author           
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
2External Organizations, ou_persistent22              
3Research Department Schlögl, Max Planck Institute for Chemical Energy Conversion, Max Planck Society, ou_3023874              

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 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.

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Language(s): eng - English
 Dates: 2020
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: ISI: 000526890300016
DOI: 10.1039/c9nr09041j
 Degree: -

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Title: Nanoscale
  Abbreviation : Nanoscale
Source Genre: Journal
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Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 12 (12) Sequence Number: - Start / End Page: 6759 - 6766 Identifier: ISSN: 2040-3364
CoNE: https://pure.mpg.de/cone/journals/resource/2040-3364