Synthesis of Metal Nanoparticles Using Supercritical Alcohol
- Synthesis of Metal Nanoparticles Using Supercritical Alcohol
- 김대우; Bambang Veriansyah; 김재훈; 김재덕; 이윤우
- Issue Date
- 9th International Symposium on Supercritical Fluids
- Metal nanoparticles with uniform size distribution were synthesized in a low carbon
number of supercritical alcohol without using reducing agents or surfactants. Nanoparticles of
copper (Cu), nickel (Ni), silver (Ag) were synthesized in supercritical methanol or
supercritical ethanol at 300 bar, 400 oC and reaction time of 5 min. The supercritical alcohol
acted both as reaction medium and as a reducing agent. The synthesized particles were
spherical in shape. The average diameter of Cu, Ni, and Ag particles were 420 ± 119 nm, 50 ±
10 nm, and 390 ± 114 nm, respectively.
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