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Mechanism of the Transfer of AuCl4- and TOA+ Ions Across the Liquid/Liquid Interface
被引:7
|作者:
Duong, Quynh
[1
]
Tan, Yunshi
[1
]
Corey, Jason
[1
]
Anz, Samir
[1
]
Sun, Peng
[1
]
机构:
[1] Calif State Polytech Univ Pomona, Dept Chem & Biochem, Pomona, CA 91768 USA
关键词:
GOLD NANOPARTICLES;
WATER;
ELECTROCHEMISTRY;
NUCLEATION;
D O I:
10.1021/jp512909t
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The Brust-Schiffrin (BS) two-phase method to synthesize nanoparticles has been widely used. In this method, the transfer of tetrachloroaurate (AuCl4-) from aqueous phase into organic phase is the first step. However, the mechanism of the transfer of AuCl4- is still not clear. In this paper, we studied the mechanism of the transfer of AuCl4- across a micrometer-sized interface between two immiscible electrolyte solutions (ITIES). Our results revealed that the presence of TOA(+) can enhance the transfer of AuCl4- from aqueous phase into organic phase. The enhanced transfer of AuCl4- is explained by the shuttling mechanism which has been developed by Laforge et al.
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页码:10365 / 10369
页数:5
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