Structure/activity relationships applied to the hydrogenation of α,β-unsaturated carbonyls: The hydrogenation of 3-butyne-2-one over alumina-supported palladium catalysts

Morisse, Clément G.A.; McInroy, Alastair R.; Anderson, Craig; Mitchell, Christopher J.; Parker, Stewart F.; Lennon, David

doi:10.1016/j.cattod.2016.02.028

Cited by 7 publications

(2 citation statements)

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“…This article is rooted in using IR spectroscopy to assess metal crystallite morphology of supported metal catalysts applied to selective hydrogenation reactions [10][11][12], where there is an interest to consider how hydrogen may partition at a metal surface. The following sections of the Introduction will firstly consider how certain metal sites may be linked to hydrogenation activity.…”

Section: Introductionmentioning

confidence: 99%

“…Whilst the relevance of site-selective chemistry within certain metal-catalysed hydrogenation reactions is noted, it is a non-trivial matter to use IR spectroscopy of chemisorbed hydrogen to discern passive and active adsorption sites. However, FT-IR studies of CO adsorption over, for example, supported Pd catalysts has a role for defining active site distributions, which can then be correlated with observed reaction trends [10][11][12]. Against this background, it is informative to consider milestones in the use of IR techniques combined with CO chemisorption to discern the active site distribution of supported metal catalysts.…”

Section: Introductionmentioning

confidence: 99%

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A Comparison of Experimental Procedures for the Application of Infrared Spectroscopy to Probe the Surface Morphology of an Alumina-Supported Palladium Catalyst

et al. 2021

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Structure/function relationships in heterogeneous catalysis play an important role in catalyst design strategies. The combination of chemisorption of suitable probe molecules alongside application of infrared spectroscopy is an established technique for providing information on the metal crystallite morphology of supported metal catalysts. Following a review of key literature on this topic, a variety of experimental arrangements that may be adopted for this task are examined. Specifically, the adsorption of CO over a 5wt% Pd/Al2O3 catalyst is investigated using transmission and diffuse reflectance sampling options and two research grade spectrometers. Although comparable spectra are obtained on all the platforms examined, differences are noted. In particular, temperature-programmed IR spectroscopy on one platform enables resolution of two features assigned to linear CO bound to the Pd particles. The relevance of this sub-division of terminal sites with respect to selective hydrogenation reactions is briefly considered.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%