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Improved thermal stability of oxide-supported naked gold nanoparticles by ligand-assisted pinning
César Moreno1, Núria J Divins, Jaume Gázquez
1Centre de Recerca en Nanoenginyeria, UPC, Barcelona 08028, Spain. cesar.moreno.sierrra@upc.edu
Nanoscale
|March 3, 2012
Abstract:
We report a method to improve the thermal stability, up to 900 °C, of bare-metal (naked) gold nanoparticles supported on top of SiO(2) and SrTiO(3) 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.
