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Two‐Phase Synthesis of Small Thiolate‐Protected Au 15 and Au 18 Nanoclusters
Author(s) -
Yao Qiaofeng,
Yu Yong,
Yuan Xun,
Yu Yue,
Xie Jianping,
Lee Jim Yang
Publication year - 2013
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201203112
Subject(s) - nanoclusters , dissociation (chemistry) , dispersity , partition (number theory) , cluster (spacecraft) , nanotechnology , computer science , nanoparticle , chemistry , materials science , mathematics , combinatorics , organic chemistry , programming language
A one‐pot two‐phase method for the direct synthesis of small Au (Au 15 and Au 18 ) nanoclusters (NCs) of high purity is developed. A mild reductant is combined with two equilibria (i.e., equilibrium partition and aggregation–dissociation equilibrium) to provide a constant reaction environment for the formation of monodisperse small Au NCs. The pH sensitivity of the aggregation–dissociation equilibrium is used to tailor the cluster size.