Grouping and aggregation of ligand protected Au9 clusters on TiO2 nanosheets Al Qahtani, Hassan Higuchi, R Sasaki, T Alvino, J F Metha, G F Golovko, V B Adnan, Rohul H Andersson, Gunther Nakayama, T 2017-04-10T04:56:32Z 2017-04-10T04:56:32Z 2016-11-10
dc.description Open Access Article. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. en
dc.description.abstract Atomically precise chemically synthesised Au clusters, in the form of [Au9(PPh3)8](NO3)3, were deposited onto titania nanosheets after UV pre-treatment of the substrate and examined with scanning tunneling microscopy (STM), atomic force microscopy (AFM) and synchrotron X-ray photoelectron spectroscopy (XPS) before and after heat treatment. The STM, AFM and XPS results complement each other. AFM was performed to determine the height of the deposited species and their dispersion on titania nanosheets. STM shows groups of clusters that at least partially consist of individual clusters both before and after annealing. STM cannot exclude the existence of individual clusters on the titania nanosheets outside the groups. XPS shows that before annealing the Au clusters are attached to the titania surface as individual clusters thus as clusters with non-agglomerated cluster cores. After annealing, both individual and agglomerated clusters are found on the surface. The combination of AFM, STM and XPS shows that the groups formed by the clusters consist of individual and agglomerated clusters. en
dc.identifier.citation Al Qahtani, Hassan S., et al. "Grouping and aggregation of ligand protected Au 9 clusters on TiO 2 nanosheets." RSC Advances 6.112 (2016): 110765-110774. en
dc.identifier.doi en
dc.language.iso en
dc.oaire.license.condition.license CC-BY
dc.publisher Royal Society of Chemistry en
dc.rights This journal is © The Royal Society of Chemistry 2016 en
dc.rights.holder The Royal Society of Chemistry en
dc.subject ligand protected Au9 cluster en
dc.subject titania nanosheets en
dc.subject Nanoclusters en
dc.title Grouping and aggregation of ligand protected Au9 clusters on TiO2 nanosheets en
dc.type Article en
local.contributor.authorOrcidLookup Andersson, Gunther: en_US
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