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Preparation of Cu Nanoparticles from Water-in-Oil Microemulsions

✍ Scribed by Sunqing Qiu; Junxiu Dong; Guoxu Chen

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
384 KB
Volume
216
Category
Article
ISSN
0021-9797

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✦ Synopsis

Spherical Cu nanoparticles were synthesized in sodium dodecyl sulfate (SDS)/isopentanol/cyclohexane/water microemulsions with sodium borohydride as a reducing agent. Nanoparticles formed in microemulsions were characterized by transmission electron microscopy (TEM), x-ray diffractometry (XRD), and small-angle X-ray scattering (SAXS). The size and polydisperity of particles were greatly affected by the mole ratio of water to surfactant (w) and the concentration of precursor salt. The ideal size and monodispersity of nanoparticles can be obtained at the smaller w value and lower concentration of Cu 2Ψ‰ solution.

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