Reduced Reactivity of Aged Au Nanoparticles in Ligand Exchange Reactions
- 1 June 2004
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 126 (25) , 7780-7781
- https://doi.org/10.1021/ja048879w
Abstract
Solutions of alkanethiol-protected Au nanoparticles undergo a slow aging process over a period of several days, which dramatically reduces their reactivity in a place-exchange reaction with disulfides. This behavior was tentatively attributed to the reorganization of the most reactive binding sites (e.g., defect sites) on the nanoparticle surface.Keywords
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