Centre de Recerca en Nanoenginyeria, UPC, Barcelona 08028, Spain.
Nanoscale. 2012 Apr 7;4(7):2278-80. doi: 10.1039/c2nr30114h. Epub 2012 Mar 1.
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.
我们报告了一种通过配体辅助钉扎来提高裸金纳米粒子在 SiO(2) 和 SrTiO(3) 衬底上的热稳定性(高达 900°C)的方法。这种方法导致在 900°C 的空气中进行热退火后,没有明显烧结的单分散裸金纳米粒子。描述了配体辅助钉扎的机制。