Synthesis of Copper Nanoparticles Using Glass Microfluidic Device

In a synthesis of gold nanoparticles on a microfluidic device by citrate reduction, a particle size control by changing a flow rate was reported. To apply this simple control method to the synthesis of other metallic materials, we propose the synthesis of copper nanoparticles (CuNPs) in ethylene glycol by the microfluidic device using ascorbic acid as both antioxidant and reducing agent. The experimental results found for the first time that the effect of the flow rate of agents on particle size of the synthesized CuNPs in the device.