Continuous synthesis of gold nanoparticles in a microreactor
Continuous synthesis of gold nanoparticles in a microreactor
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DOI：
10.1021/nl050097t
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发表时间：
2005-04-01
期刊：
影响因子：
10.8
通讯作者：
Köhler, JM
中科院分区：
文献类型：
--
作者：
Wagner, J;Köhler, JM
使用连续流动微反应器直接从金盐（HAuCl 4）和还原剂（抗坏血酸）合成金纳米颗粒（5至50 nm）。实验参数进行了优化，以获得窄的尺寸分布，这是在平均两倍窄于在常规合成中获得的。此外，还有两种方法，即，测试了反应过程中pH的升高和反应器内部表面的疏水化以抑制反应器结垢。
A continuous flow microreactor was used for the synthesis of gold nanoparticles (5 to 50 nm) directly from a gold salt (HAuCl4) and a reducing agent (ascorbic acid). Experimental parameters were optimized to obtain narrow size distributions, which were at average two times narrower than those obtained in a conventional synthesis. Additionally, two approaches, i.e., elevation of pH during reaction and hydrophobization of internal reactor surfaces were tested to suppress reactor fouling.