A Microfluidic Device for the Investigation of Rapid Gold Nanoparticle Formation in Continuous Turbulent Flow

被引：6
|
作者：
Hofmann, G. [1 ]
Tofighi, G. [1 ]
Rinke, G. [2 ]
Baier, S. [1 ]
Ewinger, A. [2 ]
Urban, A. [2 ]
Wenka, A. [2 ]
Heideker, S. [2 ]
Jahn, A. [3 ]
Dittmeyer, R. [2 ]
Grunwaldt, J-D [1 ,4 ]
机构：
[1] Karlsruhe Inst Technol, Inst Chem Technol & Polymer Chem ITCP, Karlsruhe, Germany
[2] Karlsruhe Inst Technol, Inst Micro Proc Engn IMVT, Karlsruhe, Germany
[3] Tech Univ Dresden, Inst Semicond & Microsyst, Dresden, Germany
[4] Karlsruhe Inst Technol, Inst Catalysis Res & Technol IKFT, Karlsruhe, Germany
来源：
16TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS16) | 2016年 / 712卷
关键词：
GROWTH; MECHANISMS; KINETICS;
D O I：
10.1088/1742-6596/712/1/012072
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A new setup with an integrated microfluidic chip with small dead time, high time resolution and compatibility with in situ X-ray absorption (XAS) measurements is presented. It can also be combined with a free liquid jet. By using the microfluidic chip the short reaction times from 2 to 20 milliseconds can be observed, beyond that an external cyclone mixer for extended observation times was applied. The reduction of gold ions with tetrakis(hydroxymethyl) phosphonium (THPC) has been investigated in the microfluidic setup to monitor this reaction yielding small gold nanoparticles, requiring preferentially a free liquid jet.
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页数：4
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