Synthesis of copper nanocolloids using a continuous flow based microreactor

被引:19
作者
Xu, Lei [1 ,2 ]
Peng, Jinhui [1 ]
Srinivasakannan, C. [3 ]
Chen, Guo [1 ]
Shen, Amy Q. [2 ,4 ]
机构
[1] Kunming Univ Sci & Technol, Fac Met & Energy Engn, State Key Lab Complex Nonferrous Met Resources Cl, Kunming 650093, Peoples R China
[2] Univ Washington, Mech Engn, Seattle, WA 98195 USA
[3] Petr Inst, Chem Engn Program, Abu Dhabi, U Arab Emirates
[4] Grad Univ, Okinawa Inst Technol, Micro Bio Nanofluid Unit, Okinawa, Japan
基金
中国国家自然科学基金;
关键词
Microreactor; Synthesis; Copper nanocolloids; Sodium borohydride reduction; MICROFLUIDIC SYNTHESIS; SILVER NANOPARTICLES; METAL NANOPARTICLES; FABRICATION; DESIGN; SIZE;
D O I
10.1016/j.apsusc.2015.07.070
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 copper (Cu) nanocolloids were prepared by sodium borohydride (NaBH4) reduction of metal salt solutions in a T-shaped microreactor at room temperature. The influence of NaBH4 molar concentrations on copper particle's diameter, morphology, size distribution, and elemental compositions has been investigated by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The ultraviolet-visible spectroscopy (UV-vis) was used to verify the chemical compounds of nanocolloids and estimate the average size of copper nanocolloids. The synthesized copper nanocolloids were uniform in size and non-oxidized. A decrease in the mean diameter of copper nanocolloids was observed with increasing NaBH4 molar concentrations. The maximum mean diameter (4.25 nm) occurred at the CuSO4/NaBH4 molar concentration ratio of 1:2. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:1 / 6
页数:6
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