Abstract
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), and silver (Ag) were synthesized in supercritical methanol or supercritical ethanol at 300 bar, 400 °C 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 was 420 ± 119 nm, 50 ± 10 nm, and 390 ± 114 nm, respectively. Crown
Original language | English |
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Pages (from-to) | 1880-1882 |
Number of pages | 3 |
Journal | Materials Letters |
Volume | 63 |
Issue number | 21 |
DOIs | |
Publication status | Published - 2009 Aug 31 |
Bibliographical note
Funding Information:This research was supported by Nano R&D program through the Korea Science and Engineering Foundation funded by the Ministry of Education, Science and Technology (2008-02344). The authors acknowledge the Korea Research Council of Fundamental Science and Technology (KRCF) and the Korea Institute of Science and Technology (KIST) for ‘National Agenda Program (NAP)’ for the additional support.
Keywords
- Metal nanoparticles
- Nanomaterials
- Supercritical fluids
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering