Volume 208, 2018

Model systems in heterogeneous catalysis: towards the design and understanding of structure and electronic properties

Abstract

We discuss in this paper two case studies related to nano-particle catalyst systems. One concerns a model system for the Cr/SiO2 Phillips catalyst for ethylene polymerization and here we present XPS data to complement the previously published TPD, IRAS and reactivity studies to elucidate the electronic structure of the system in some detail. The second case study provides additional information on Au nano-particles supported on ultrathin MgO(100)/Ag(100) films where we had observed a specific activity of the particle’s rim at the metal–oxide interface with respect to CO2 activation and oxalate formation, obviously connected to electron transfer through the MgO film from the metal substrate underneath. Here we present XPS and Auger data, which allows detailed analysis of the observed chemical shifts. This analysis corroborates previous findings deduced via STM.

Graphical abstract: Model systems in heterogeneous catalysis: towards the design and understanding of structure and electronic properties

Associated articles

Article information

Article type
Paper
Submitted
17 Nov 2017
Accepted
30 Nov 2017
First published
06 Dec 2017
This article is Open Access
Creative Commons BY license

Faraday Discuss., 2018,208, 307-323

Model systems in heterogeneous catalysis: towards the design and understanding of structure and electronic properties

Q. Pan, L. Li, S. Shaikhutdinov, Y. Fujimori, M. Hollerer, M. Sterrer and H.-J. Freund, Faraday Discuss., 2018, 208, 307 DOI: 10.1039/C7FD00209B

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