Correction to: The Role of Adsorbed and Subsurface Carbon Species for the 
Selective Alkyne Hydrogenation Over a Pd-Black Catalyst: An Operando Study of 
Bulk and Surface

Velasco Vélez, Juan; Teschner, Detre; Girgsdies, Frank; Hävecker, Michael; Streibel, Verena; Willinger, Marc Georg; Cao, Jing; Lamoth, Maximilian; Frei, Elias; Wang, R.; Centeno, A.; Zurutuza, A.; Hofmann, S.; Schlögl, Robert; Knop-Gericke, Axel

doi:10.1007/s11244-018-1090-3

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Correction to: The Role of Adsorbed and Subsurface Carbon Species for the Selective Alkyne Hydrogenation Over a Pd-Black Catalyst: An Operando Study of Bulk and Surface

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Velasco Vélez, Juan
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion;

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Teschner, Detre
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion;

/persons/resource/persons21557

Girgsdies, Frank
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Hävecker, Michael
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion;

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Streibel, Verena
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Willinger, Marc Georg
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Cao, Jing
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Lamoth, Maximilian
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Frei, Elias
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Schlögl, Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion;

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Knop-Gericke, Axel
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion;

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Citation

Velasco Vélez, J., Teschner, D., Girgsdies, F., Hävecker, M., Streibel, V., Willinger, M. G., et al. (2018). Correction to: The Role of Adsorbed and Subsurface Carbon Species for the Selective Alkyne Hydrogenation Over a Pd-Black Catalyst: An Operando Study of Bulk and Surface. Topics in Catalysis, 61(20), 2062-2063. doi:10.1007/s11244-018-1090-3.

Cite as: https://hdl.handle.net/21.11116/0000-0002-CDE5-5

Abstract

The selective hydrogenation of propyne over a Pd-black model catalyst was investigated under operando conditions at 1 bar
making use of advanced X-ray diffraction (bulk sensitive) and photo-electron spectroscopy (surface sensitive) techniques. It was found that the population of subsurface species controls the selective catalytic semi-hydrogenation of propyne to pro-pylene due to the formation of surface and near-surface PdC_x
that inhibits the participation of more reactive bulk hydrogen in the hydrogenation reaction. However, increasing the partial pressure of hydrogen reduces the population of PdC_x with the concomitant formation of a β-PdH_x phase up to the surface, which is accompanied by a lattice expansion, allowing the participation of more active bulk hydrogen which is responsible for the unselective total alkyne hydrogenation. Therefore, controlling the surface and subsurface catalyst chemistry is crucial to control the selective alkyne semi-hydrogenation.