Highly controlled synthesis of nanometric gold particles by citrate reduction using the short mixing, heating and quenching times achievable in a microfluidic device.
Homodispersed 1.8 nm gold nanoparticles were obtained reproducibly in high yields using the classical Turkevich protocol at a high concentration in a continuous flow capillary reactor. The microfluidic reactor made from commercially available items permitted short mixing, heating and quenching times which are the key parameters of this synthesis.
Unité de Catalyse et de Chimie du Solide (UMR CNRS 8181), Université Lille 1-Sciences et Technologies, 59655 Villeneuve d'Ascq Cedex, France.
Jamal
J
Ftouni
Maël
M
Penhoat
Ahmed
A
Addad
Edmond
E
Payen
Christian
C
Rolando
Jean-Sébastien
JS
Girardon
D019343:Citric Acid / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D008027:Light; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D046210:Microfluidic Analytical Techniques; D010084:Oxidation-Reduction; D012542:Scattering, Radiation; D013696:Temperature; D013997:Time Factors
D019343:Citric Acid; D006046:Gold