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

Stefan Peters; Benny Kunkel; Cafer Tufan Cakir; Anke Kabelitz; Steffen Witte; Thomas Bernstein; Stephan Bartling; Martin Radtke; Franziska Emmerling; Ali Mohamed Abdel-Mageed; Sebastian Wohlrab; Ana Guilherme Buzanich

doi:10.1039/D3CC03277A

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

Stefan Peters,

^a Benny Kunkel,^a Cafer Tufan Cakir,^b Anke Kabelitz,^b Steffen Witte,^b Thomas Bernstein,^b Stephan Bartling,

^a Martin Radtke,

^b Franziska Emmerling,

^b Ali Mohamed Abdel-Mageed,

^a Sebastian Wohlrab

*^a and Ana Guilherme Buzanich

*^b

Author affiliations

* Corresponding authors

^a Leibniz Institute for Catalysis (LIKAT Rostock), Albert-Einstein-Str. 29a, Rostock 18059, Germany
E-mail: sebastian.wohlrab@catalysis.de

^b Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Str. 11, Berlin 12489, Germany
E-mail: ana.buzanich@bam.de

Abstract

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 in situ characterizations.

Chemical Communications

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

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

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