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|Title:||Toward control of gold cluster aggregation on TiO₂ via surface treatments|
|Other Titles:||Toward control of gold cluster aggregation on TiO(2) via surface treatments|
Abu Bakar, F.
|Citation:||The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter, 2015; 119(43):24465-24474|
|Publisher:||American Chemical Society|
|Jan-Yves Ruzicka, Faridah Abu Bakar, Christoffer Hoeck, Rohul Adnan, Campbell McNicoll, Tim Kemmitt, Bruce C. Cowie, Gregory F. Metha, Gunther G. Andersson, and Vladimir B. Golovko|
|Abstract:||Well-defined Au–TiO₂ materials were synthesized by deposition of triphenylphosphine-protected Au₉ clusters on TiO₂ (Aeroxide P-25), pre-treated in eight different ways and subsequently exposed to two post-treatments. X-ray photoelectron spectroscopy and UV–vis diffuse reflectance spectroscopy studies showed that in most cases the PPh₃ ligand shell was removed upon deposition even before post-treatment, coinciding with some cluster aggregation. However, clusters deposited on TiO₂ treated using H₂SO₄ and H2O₂ showed remarkable resistance to aggregation, even after high-temperature calcination, while clusters on H₂-treated TiO₂ showed the greatest resistance to aggregation under ozonolysis.|
|Description:||Published: October 1, 2015|
|Rights:||© 2015 American Chemical Society. This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.|
|Appears in Collections:||Aurora harvest 8|
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