APA
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Anderson, D. P., Adnan, R. H., Alvino, J. F., Shipper, O., Donoeva, B., Růžička, J., … Andersson, G. G. (2013). Chemically synthesised atomically precise gold clusters deposited and activated on titania. Part II. Physical Chemistry Chemical Physics, 14806. https://doi.org/10.1039/C3CP52497C
Chicago/Turabian
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Anderson, D. P., R. H. Adnan, J. F. Alvino, O. Shipper, B. Donoeva, J. Růžička, H. S. Al Qahtani, et al. “Chemically Synthesised Atomically Precise Gold Clusters Deposited and Activated on Titania. Part II.” Physical Chemistry Chemical Physics (2013): 14806.
MLA
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Anderson, D. P., et al. “Chemically Synthesised Atomically Precise Gold Clusters Deposited and Activated on Titania. Part II.” Physical Chemistry Chemical Physics, 2013, p. 14806, doi:10.1039/C3CP52497C.
BibTeX Click to copy
@article{d2013a,
title = {Chemically synthesised atomically precise gold clusters deposited and activated on titania. Part II.},
year = {2013},
journal = {Physical Chemistry Chemical Physics},
pages = {14806},
doi = {10.1039/C3CP52497C},
author = {Anderson, D. P. and Adnan, R. H. and Alvino, J. F. and Shipper, O. and Donoeva, B. and Růžička, J. and Qahtani, H. S. Al and Harris, H. and Cowie, B. and Aitken, J. and Golovko, V. B. and Metha, G. F. and Andersson, G. G.}
}
Synchrotron XPS was used to investigate a series of chemically synthesised, atomically precise gold clusters Au(n)(PPh3)y (n = 8, 9 and 101, y depending on the cluster size) immobilized on anatase (titania) nanoparticles. Effects of post-deposition treatments were investigated by comparison of untreated samples with analogues that have been heat treated at 200 °C in O2, or in O2 followed by H2 atmosphere. XPS data shows that the phosphine ligands are oxidised upon heat treatment in O2. From the position of the Au 4f(7/2) peak it can be concluded that the clusters partially agglomerate immediately upon deposition. Heating in oxygen, and subsequently in hydrogen, leads to further agglomeration of the gold clusters. It is found that the pre-treatment plays a crucial role in the removal of ligands and agglomeration of the clusters.
