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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

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.

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Velasco-Vélez2018_Article_CorrectionToTheRoleOfAdsorbedA.pdf (Verlagsversion), 666KB
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 Urheber:
Velasco Vélez, Juan1, 2, Autor           
Teschner, Detre1, 2, Autor           
Girgsdies, Frank1, Autor           
Hävecker, Michael1, 2, Autor           
Streibel, Verena1, Autor           
Willinger, Marc Georg1, Autor           
Cao, Jing1, Autor           
Lamoth, Maximilian1, Autor           
Frei, Elias1, Autor           
Wang, R.3, Autor
Centeno, A.4, Autor
Zurutuza, A.4, Autor
Hofmann, S.3, Autor
Schlögl, Robert1, 2, Autor           
Knop-Gericke, Axel1, 2, Autor           
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
2Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion, ou_persistent22              
3Department of Engineering, University of Cambridge, Cambridge CB3 0FA, UK, ou_persistent22              
4Graphenea, 20018 San Sebastian, Spain, ou_persistent22              

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 Zusammenfassung: 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 PdCx
that inhibits the participation of more reactive bulk hydrogen in the hydrogenation reaction. However, increasing the partial pressure of hydrogen reduces the population of PdCx with the concomitant formation of a β-PdHx 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.

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Sprache(n): eng - English
 Datum: 2018-10-242018-12
 Publikationsstatus: Erschienen
 Seiten: 2
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1007/s11244-018-1090-3
 Art des Abschluß: -

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Titel: Topics in Catalysis
  Andere : Top. Catal.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: New York : Springer
Seiten: 2 Band / Heft: 61 (20) Artikelnummer: - Start- / Endseite: 2062 - 2063 Identifikator: ISSN: 1022-5528
CoNE: https://pure.mpg.de/cone/journals/resource/954925584249