In this work, we focus on the simulated EXAFS spectrum of a Cu-oxo dimer sited in the eight-membered ring of the chabazite zeolite framework. We show the high level of complexity related to the analysis of the second and third shell of the EXAFS-Fourier transform due to the overlap of contributions stemming from different atomic species present in the Cu-local environment. Subsequently, we demonstrate the potential of Wavelet Transform Analysis as a new tool in the identification and visualization of EXAFS atomic contributions, providing an easier and effective interpretation of the data collected on Cu-zeolite systems.

Wavelet analysis of a Cu-oxo zeolite EXAFS simulated spectrum

Martini A.
First
;
Lomachenko K. A.;Borfecchia E.
Last
2020

Abstract

In this work, we focus on the simulated EXAFS spectrum of a Cu-oxo dimer sited in the eight-membered ring of the chabazite zeolite framework. We show the high level of complexity related to the analysis of the second and third shell of the EXAFS-Fourier transform due to the overlap of contributions stemming from different atomic species present in the Cu-local environment. Subsequently, we demonstrate the potential of Wavelet Transform Analysis as a new tool in the identification and visualization of EXAFS atomic contributions, providing an easier and effective interpretation of the data collected on Cu-zeolite systems.
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https://www.sciencedirect.com/science/article/pii/S0969806X18309551
Cu-exchanged chabazite; Direct CH; 4; to CH; 3; OH conversion; EXAFS; Wavelet transform analysis
Martini A.; Pankin I.A.; Marsicano A.; Lomachenko K.A.; Borfecchia E.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/1768589
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