Найдено научных статей и публикаций: 1, для научной тематики: Stable dispersion
1.
I.R. Kamrupi and S.K. dolui
- Journal of Experimental Nanoscience , 2010
Reported herein is the synthesis of stable dispersion copper nanoparticles by chemical reduction of Copper Chloride (CuCl2) in a water-in supercritical carbon dioxide (sc-CO2) medium using sodiumborohydrate (NaBH4) as reducing agent, polydimethylsiloxane (PDMS) as the stabilizer and Sodium (bis-2eth...
Reported herein is the synthesis of stable dispersion copper nanoparticles by chemical reduction of Copper Chloride (CuCl2) in a water-in supercritical carbon dioxide (sc-CO2) medium using sodiumborohydrate (NaBH4) as reducing agent, polydimethylsiloxane (PDMS) as the stabilizer and Sodium (bis-2ethylhexyl) sulfosuccinate(AOT) as co-surfactant at temperature 40 o C and pressure in the range of 2000 psi-2400psi. UV-visible spectroscopy exhibits a typical emission peak at 560-590 nm for Cu nanoparticles. By changing the reaction pressure and the stabilizer concentration, the size and the shape of the copper nanoparticles could be easily controlled. The X-ray diffraction pattern reveals that the Cu nanoparticles formed in the range of 4-8 nm which are in consistent with the TEM images.