Improved thermal stability of oxide-supported naked gold nanoparticles by ligand-assisted pinning

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URI: https://hdl.handle.net/10902/34894
ISSN: 2040-3364
ISSN: 2040-3372
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Autoría
Moreno Sierra, CésarAutoridad Unican; Divins, Núria J.; Gázquez, Jaume; Varela, Maria; Angurell, Inmaculada; Llorca, Jordi
Fecha
2012-04
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© Royal Society of Chemistry
Publicado en
Nanoscale, 2012, 4(7), 2278-2280
Editorial
Royal Society of Chemistry
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Resumen/Abstract
We report a method to improve the thermal stability, up to 900 °C, of bare-metal (naked) gold nanoparticles supported on top of SiO₂ and SrTiO₃ substrates via ligand-assisted pinning. This approach leads to monodisperse naked gold nanoparticles without significant sintering after thermal annealing in air at 900 °C. The ligand-assisted pinning mechanism is described.
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