Related Experiment Video
Updated: Jul 20, 2026

A Continuous-flow Photocatalytic Reactor for the Precisely Controlled Deposition of Metallic Nanoparticles
Published on: April 10, 2019
Dynamic electronic structure of a Au/TiO2 catalyst under reaction conditions
Elizabeth A Willneff1, Simon Braun, Dirk Rosenthal
1Molecular Materials Centre, School of Chemistry, The University of Manchester, P.O. Box 88, Manchester, M60 1QD, UK.
Abstract:
The electronic structure of a highly active Au/TiO2 powder catalyst was probed in situ by synchrotron X-ray photoelectron spectroscopy (XPS) in the 10-1 mbar range. The electronic structure of the Au component was found to respond sensitively to changes in temperature and indicated the absence of bulklike metallic Au under the conditions of highest catalytic activity. Concurrent modification of interfacial sites adjacent to Au on the TiO2 support was not evident from the Ti photoemission, but may have been below the detection limit of XPS.
Related Concept Videos
Heterogeneous Catalysis
Catalysis
Catalysis
Thermal and Photochemical Electrocyclic Reactions: Overview
Introduction to Mechanisms of Enzyme Catalysis

