Time-, space- and energy-resolved in situ characterization of catalysts by X-ray absorption spectroscopy

A setup for dispersive X-ray absorption spectroscopy (XAS) with spatial, temporal and energy resolution is presented. Through investigation of a Mo/HZSM-5 catalyst during the dehydroaromatization of methane we observed a reduction gradient along the packed bed. Our new method represents an unprecede...

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Veröffentlicht in:	Chemical communications (Cambridge, England) England), 2023-10, Vol.59 (81), p.12120-12123
Hauptverfasser:	Peters, Stefan, Kunkel, Benny, Cakir, Cafer Tufan, Kabelitz, Anke, Witte, Steffen, Bernstein, Thomas, Bartling, Stephan, Radtke, Martin, Emmerling, Franziska, Abdel-Mageed, Ali Mohamed, Wohlrab, Sebastian, Guilherme Buzanich, Ana
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption spectroscopy Catalysts Energy resolution Packed beds X ray absorption
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A setup for dispersive X-ray absorption spectroscopy (XAS) with spatial, temporal and energy resolution is presented. Through investigation of a Mo/HZSM-5 catalyst during the dehydroaromatization of methane we observed a reduction gradient along the packed bed. Our new method represents an unprecedented addition to the analytical toolbox for characterizations.
ISSN:	1359-7345 1364-548X
DOI:	10.1039/d3cc03277a