Operando X‐ray Spectroscopy Study of Pd and Pd–Au Laterally Condensed Catalysts during Selective Acetylene Hydrogenation: The Role of Carbon
Abstract
ABSTRACT In this study, near ambient pressure X‐ray photoelectron and X‐ray absorption spectroscopy (NAP‐XPS and NAP‐XAS) were performed during the selective acetylene hydrogenation reaction on Pd and Pd‐Au laterally condensed catalysts. The activity and selectivity of this reaction are strongly influenced by the incorporation of carbon into the Pd and Pd–Au lattice, which is investigated by both experiment and theory. We find that Pd can take up much more carbon than Pd‐Au, which can be used to tune the activity of the catalyst during the hydrogenation reactions. The amount of the carbonaceous species dissolved in the Pd and Pd–Au lattice was quantified and their effect on the chemical and the electronic structure was tracked by means of operando spectroscopy throughout different stages of the acetylene hydrogenation reaction.
Article Details
Authors (23)
Eylül Öztuna
Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Department of Inorganic Chemistry Faradayweg 4‐6 Berlin Germany
Thomas Götsch
Department of Inorganic Chemistry Fritz Haber Institute of the Max Planck Society 14195 Berlin Germany
Daniel Cruz
Patrick Zeller
Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Department of Inorganic Chemistry Faradayweg 4‐6 Berlin Germany
Olga V. Vinogradova
Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Theory Department Faradayweg 4‐6 Berlin Germany
Zehua Li
Christian Rohner
Franz‐Philipp Schmidt
Department of Inorganic Chemistry Fritz Haber Institute of the Max Planck Society 14195 Berlin Germany
Zahra Gheisari
Alexander Steigert
Martin Muske
Helmholtz‐Zentrum Berlin für Materialien und Energie Albert‐Einstein‐Straße 15 Berlin Germany
Michael Hävecker
Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Department of Inorganic Chemistry Faradayweg 4‐6 Berlin Germany
Eugen Stotz
Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Department of Inorganic Chemistry Faradayweg 4‐6 Berlin Germany
Iryna Antonyshyn
Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Department of Inorganic Chemistry Faradayweg 4‐6 Berlin Germany
Frank Girgsdies
Olaf Timpe
Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Department of Inorganic Chemistry Faradayweg 4‐6 Berlin Germany
Thomas Lunkenbein
Fritz-Haber-Institut der Max-Planck-Gesellschaft
Vanessa J. Bukas
Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Theory Department Faradayweg 4‐6 Berlin Germany
Karsten Reuter
Theory Department, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
Robert Schlögl
Katarzyna Skorupska
Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Department of Inorganic Chemistry Faradayweg 4‐6 Berlin Germany
Axel Knop‐Gericke
Department of Inorganic Chemistry Fritz Haber Institute of the Max Planck Society 14195 Berlin Germany
Beatriz Roldan Cuenya
Department of Interface Science