金纳米粒子上混合硫醇的纳米级相分离。
Nanoscale phase segregation of mixed thiolates on gold nanoparticles.
机构信息
Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, Nashville, TN 37235, USA.
出版信息
Angew Chem Int Ed Engl. 2011 Nov 4;50(45):10554-9. doi: 10.1002/anie.201102882. Epub 2011 Sep 1.
Abstract
Phase segregation and domain formation is observed within the protecting monolayer of gold nanoparticles (AuNPs) using ion mobility-mass spectrometry, a two-dimensional gas-phase separation technique. Experimental data is compared to a theoretical model that represents a randomly distributed ligand mixture. Deviations from this model provide evidence for nanophase separation resulting in anisotropic AuNPs.
摘要
利用离子淌度-质谱技术，在金纳米粒子（AuNPs）的保护单层内观察到相分离和畴形成，这是一种二维气相分离技术。实验数据与代表随机分布配体混合物的理论模型进行了比较。该模型的偏差为纳米相分离导致各向异性 AuNPs 提供了证据。
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