A comparison of experimental procedures for the application of infrared spectroscopy to probe the surface morphology of an alumina-supported palladium catalyst

McCullagh, A.M., Warringham, R., Morisse, C.G.A., Gilpin, L.F., Brennan, C., Mitchell, C.J. and Lennon, D. (2021) A comparison of experimental procedures for the application of infrared spectroscopy to probe the surface morphology of an alumina-supported palladium catalyst. Topics in Catalysis, 64(17), pp. 1010-1020. (doi: 10.1007/s11244-021-01435-y)

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Abstract

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.

Item Type:Articles
Additional Information:The EPSRC and the University of Glasgow are thanked for project studentships (Grant Nos. AM, EP/N509668/1; RW, EP/M506539, EP/M508056/1; LFG, EP/J500434).
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Warringham, Mr Robbie and Gilpin, Miss Lauren and Lennon, Professor David and Morisse, Mr Clement and Mccullagh, Miss Annelouise
Authors: McCullagh, A.M., Warringham, R., Morisse, C.G.A., Gilpin, L.F., Brennan, C., Mitchell, C.J., and Lennon, D.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Topics in Catalysis
Publisher:Springer
ISSN:1022-5528
ISSN (Online):1572-9028
Published Online:22 April 2021
Copyright Holders:Copyright © 2021 The Authors
First Published:First published in Topics in Catalysis 64(17): 1010-1020
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
172865EPSRC DTP 16/17 and 17/18Tania GalabovaEngineering and Physical Sciences Research Council (EPSRC)EP/N509668/1Research and Innovation Services
190790EPSRC DTG 2014Mary Beth KneafseyEngineering and Physical Sciences Research Council (EPSRC)EP/M506539/1Research and Innovation Services
190906EPSRC 2015 DTPMary Beth KneafseyEngineering and Physical Sciences Research Council (EPSRC)EP/M508056/1Research and Innovation Services
190386EPSRC Doctoral Training Grant 2011-2015Mary Beth KneafseyEngineering and Physical Sciences Research Council (EPSRC)EP/J500434/1Research and Innovation Services