The roles of subsurface carbon and hydrogen in palladium-catalyzed alkyne hydrogenation

Detre Teschner, János Borsodi, A. Wootsch, Zsolt Révay, Michael Hävecker, Axel Knop-Gericke, S. David Jackson, Robert Schlögl

Research output: Contribution to journalArticle

458 Citations (Scopus)

Abstract

Alkynes can be selectively hydrogenated into alkenes on solid palladium catalysts. This process requires a strong modification of the near-surface region of palladium, in which carbon (from fragmented feed molecules) occupies interstitial lattice sites. In situ x-ray photoelectron spectroscopic measurements under reaction conditions indicated that much less carbon was dissolved in palladium during unselective, total hydrogenation. Additional studies of hydrogen content using in situ prompt gamma activation analysis, which allowed us to follow the hydrogen content of palladium during catalysis, indicated that unselective hydrogenation proceeds on hydrogen-saturated β-hydride, whereas selective hydrogenation was only possible after decoupling bulk properties from the surface events. Thus, the population of subsurface sites of palladium, by either hydrogen or carbon, governs the hydrogenation events on the surface.

Original languageEnglish
Pages (from-to)86-89
Number of pages4
JournalScience
Volume320
Issue number5872
DOIs
Publication statusPublished - Apr 5 2008

Fingerprint

Hydrogenation
Alkynes
Palladium
Hydrogen
Carbon
Activation Analysis
Surface Properties
Alkenes
Catalysis
X-Rays
Population

ASJC Scopus subject areas

  • General

Cite this

Teschner, D., Borsodi, J., Wootsch, A., Révay, Z., Hävecker, M., Knop-Gericke, A., ... Schlögl, R. (2008). The roles of subsurface carbon and hydrogen in palladium-catalyzed alkyne hydrogenation. Science, 320(5872), 86-89. https://doi.org/10.1126/science.1155200

The roles of subsurface carbon and hydrogen in palladium-catalyzed alkyne hydrogenation. / Teschner, Detre; Borsodi, János; Wootsch, A.; Révay, Zsolt; Hävecker, Michael; Knop-Gericke, Axel; Jackson, S. David; Schlögl, Robert.

In: Science, Vol. 320, No. 5872, 05.04.2008, p. 86-89.

Research output: Contribution to journalArticle

Teschner, D, Borsodi, J, Wootsch, A, Révay, Z, Hävecker, M, Knop-Gericke, A, Jackson, SD & Schlögl, R 2008, 'The roles of subsurface carbon and hydrogen in palladium-catalyzed alkyne hydrogenation', Science, vol. 320, no. 5872, pp. 86-89. https://doi.org/10.1126/science.1155200
Teschner D, Borsodi J, Wootsch A, Révay Z, Hävecker M, Knop-Gericke A et al. The roles of subsurface carbon and hydrogen in palladium-catalyzed alkyne hydrogenation. Science. 2008 Apr 5;320(5872):86-89. https://doi.org/10.1126/science.1155200
Teschner, Detre ; Borsodi, János ; Wootsch, A. ; Révay, Zsolt ; Hävecker, Michael ; Knop-Gericke, Axel ; Jackson, S. David ; Schlögl, Robert. / The roles of subsurface carbon and hydrogen in palladium-catalyzed alkyne hydrogenation. In: Science. 2008 ; Vol. 320, No. 5872. pp. 86-89.
@article{b2862a1dd00a4367aa6245f94522581f,
title = "The roles of subsurface carbon and hydrogen in palladium-catalyzed alkyne hydrogenation",
abstract = "Alkynes can be selectively hydrogenated into alkenes on solid palladium catalysts. This process requires a strong modification of the near-surface region of palladium, in which carbon (from fragmented feed molecules) occupies interstitial lattice sites. In situ x-ray photoelectron spectroscopic measurements under reaction conditions indicated that much less carbon was dissolved in palladium during unselective, total hydrogenation. Additional studies of hydrogen content using in situ prompt gamma activation analysis, which allowed us to follow the hydrogen content of palladium during catalysis, indicated that unselective hydrogenation proceeds on hydrogen-saturated β-hydride, whereas selective hydrogenation was only possible after decoupling bulk properties from the surface events. Thus, the population of subsurface sites of palladium, by either hydrogen or carbon, governs the hydrogenation events on the surface.",
author = "Detre Teschner and J{\'a}nos Borsodi and A. Wootsch and Zsolt R{\'e}vay and Michael H{\"a}vecker and Axel Knop-Gericke and Jackson, {S. David} and Robert Schl{\"o}gl",
year = "2008",
month = "4",
day = "5",
doi = "10.1126/science.1155200",
language = "English",
volume = "320",
pages = "86--89",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "5872",

}

TY - JOUR

T1 - The roles of subsurface carbon and hydrogen in palladium-catalyzed alkyne hydrogenation

AU - Teschner, Detre

AU - Borsodi, János

AU - Wootsch, A.

AU - Révay, Zsolt

AU - Hävecker, Michael

AU - Knop-Gericke, Axel

AU - Jackson, S. David

AU - Schlögl, Robert

PY - 2008/4/5

Y1 - 2008/4/5

N2 - Alkynes can be selectively hydrogenated into alkenes on solid palladium catalysts. This process requires a strong modification of the near-surface region of palladium, in which carbon (from fragmented feed molecules) occupies interstitial lattice sites. In situ x-ray photoelectron spectroscopic measurements under reaction conditions indicated that much less carbon was dissolved in palladium during unselective, total hydrogenation. Additional studies of hydrogen content using in situ prompt gamma activation analysis, which allowed us to follow the hydrogen content of palladium during catalysis, indicated that unselective hydrogenation proceeds on hydrogen-saturated β-hydride, whereas selective hydrogenation was only possible after decoupling bulk properties from the surface events. Thus, the population of subsurface sites of palladium, by either hydrogen or carbon, governs the hydrogenation events on the surface.

AB - Alkynes can be selectively hydrogenated into alkenes on solid palladium catalysts. This process requires a strong modification of the near-surface region of palladium, in which carbon (from fragmented feed molecules) occupies interstitial lattice sites. In situ x-ray photoelectron spectroscopic measurements under reaction conditions indicated that much less carbon was dissolved in palladium during unselective, total hydrogenation. Additional studies of hydrogen content using in situ prompt gamma activation analysis, which allowed us to follow the hydrogen content of palladium during catalysis, indicated that unselective hydrogenation proceeds on hydrogen-saturated β-hydride, whereas selective hydrogenation was only possible after decoupling bulk properties from the surface events. Thus, the population of subsurface sites of palladium, by either hydrogen or carbon, governs the hydrogenation events on the surface.

UR - http://www.scopus.com/inward/record.url?scp=41749085498&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=41749085498&partnerID=8YFLogxK

U2 - 10.1126/science.1155200

DO - 10.1126/science.1155200

M3 - Article

C2 - 18388290

AN - SCOPUS:41749085498

VL - 320

SP - 86

EP - 89

JO - Science

JF - Science

SN - 0036-8075

IS - 5872

ER -