Template Synthesis of Subnanometer Gold Clusters in Interfacially Cross-Linked Reverse Micelles Mediated by Confined Counterions
作者： Shiyong Zhang , Yan Zhao
DOI: 10.1021/LA204694C
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摘要: A cationic surfactant with a triallylammonium headgroup was cross-linked photochemically in the presence of hydrophilic dithiol reverse micelle (RM) configuration. The interfacially micelles (ICRMs) are unusual templates for nanomaterials synthesis. Our previous work indicated that ICRMs could extract anionic metal salts such as tetracholoroaurate into interior, and entrapped aurate reduced without externally added reducing agent to form subnanometer luminescent gold clusters [Zhang, S.; Zhao, Y. ACS Nano2011, 5, 2637–2646]. In this work, bromide counterions were established template reduction tetrachloroaurate proposed happen through ligand exchange on by ions, reductive elimination halogen, disproportionation Au(I) intermediate. size be tuned rationally water-to-surfactant ratio (W0) agent. Monodisp...
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