25-27 November 2015
National Centre for Synchrotron Science
Australia/Melbourne timezone

Synchrotron XPS, EXAFS and IR studies of atomically precise chemically made clusters

26 Nov 2015, 14:45
Oliphant Auditorium ()

Oliphant Auditorium

Oral Advanced Materials Advanced Materials II


Dr Vladimir Golovko (University of Canterbury)


We are exploring the use of atomically-precise, chemically-synthesised metal clusters deposited on various forms of oxides with a view to understanding how and why they perform as catalysts and sensors.1, 2 Although measurement of their catalytic activity is important, it is vital to identify and understand the geometric and electronic structure of the active sites to make further gains in photocatalytic efficiency and efficacy. Consequently, theoretical modelling on atomically precise co-catalysts can provide understanding to interpret and explain experimental analysis and observation. Results of recent synchrotron XPS/EXAFS studies of pure and supported clusters and colloids reveal their unique electronic properties and highlight the importance of support chemistry in controlling aggregation of clusters.3, 4 We applied density functional theory to model a wide range of clusters in order to assign core and core-ligand vibrations in experimentally obtained spectra for the first time.5,6 1. R. H. Adnan et al., Catalysis Science & Technology, 2015, 5, 1323-1333. 2. M. Z. Ahmad et al., International Journal of Hydrogen Energy, 2013, 38, 12865-12877. 3. D. P. Anderson et al., Physical Chemistry Chemical Physics, 2013, 15, 14806-14813. 4. D. P. Anderson et al., Physical Chemistry Chemical Physics, 2013, 15, 3917-3929. 5. J. F. Alvino et al., RSC Advances, 2013, 3, 22140-22149. 6. T. Bennett et al., Inorganic Chemistry, 2014, 53, 4340-4349.
Keywords atomically precise clusters, unique electronic properties, DFT calculations predicting experiment

Primary author

Dr Vladimir Golovko (University of Canterbury)


Dr Baira Donoeva (University of Canterbury) Dr David Anderson (University of Canterbury) Prof. Greg Metha (University of Adelaide) Prof. Gunther Andersson (Flinders University) Dr Rohul Adnan (University of Canterbury) Mr Trystan Bennett (University of Adelaide)

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