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Title:Monitoring chemical processes on the atomic scale in catalysts by operando X-ray absorption spectrometry
Authors:ID Arčon, Iztok, UNG (Author)
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Language:English
Work type:Not categorized
Typology:1.10 - Published Scientific Conference Contribution Abstract (invited lecture)
Organization:UNG - University of Nova Gorica
Abstract:X-ray absorption spectroscopy (XAS) is a powerful tool for characterisation of local structure and chemical state of selected elements in different new functional materials and biological or environmental samples. The rapid development of extremely bright synchrotron sources of X-ray and ultraviolet light in recent years has opened new possibilities for research of matter at the atomic or molecular level, indispensable in the development of new functional nanostructured materials with desired properties. The lecture will present the possibilities offered by X-ray absorption spectroscopy with synchrotron light for ex-situ and in-situ or operando characterization of various catalyst materials before, after and during their operation. With the operando XANES and EXAFS methods it is possible to track changes in the valence states and local structures of selected elements in various (photo)catalysts, during chemical reactions under controlled reaction conditions, thus gaining insight into the dynamic functional properties and reaction mechanisms of these materials. New synchrotron light sources also opened the possibility of combining X-ray absorption or emission spectroscopy and microscopy with a resolution of up to a few tens of nanometres, allowing micro-XAS analysis with high spatial resolution.
Keywords:XAS, operando XANES, EXAFS, catalysts
Year of publishing:2022
PID:20.500.12556/RUNG-7353 New window
COBISS.SI-ID:110131971 New window
NUK URN:URN:SI:UNG:REP:HBEVU9BF
Publication date in RUNG:01.06.2022
Views:2641
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ARČON, Iztok, 2022, Monitoring chemical processes on the atomic scale in catalysts by operando X-ray absorption spectrometry. In : Zbornik konference NPM-6 / PAOT-7 [online]. Published Scientific Conference Contribution Abstract (invited lecture). Ljubljana. 2022. [Accessed 22 April 2025]. Retrieved from: https://repozitorij.ung.si/IzpisGradiva.php?lang=eng&id=7353
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Record is a part of a monograph

Title:Zbornik konference NPM-6 / PAOT-7
Place of publishing:Ljubljana
Year of publishing:2022
Conference organizer:Kemijski inštitut, Ljubljana, Slovenija

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