FIELD: nanotechnologies.
SUBSTANCE: invention relates to a nanotechnology, in particular, to a method to produce metal nanoparticles. The method includes preparation of a straight-micellar dispersion of a reducing agent on the basis of an aqueous solution of a surfactant of cation type with counterions of halogens and restoration of metal ions in a system of straight micelles. At the same time restoration is carried out with a hydrophilic additive of an organic acid. Then a micellar surfactant solution is prepared with a salt of the produced metal. Ion metals are restored by combination of the specified two solutions during mixing with production of metal nanoparticles dispersion. Nanoparticles produced after restoration are protected with a coating from a polypyrrole by polymerisation of a pyrrole salt by oxidation of the above dispersion of metal nanoparticles with a mineral acid, addition of pyrrole, hydrogen oxide and mixing.
EFFECT: improved protection of metal nanoparticles against oxidation.
5 cl, 1 ex
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Authors
Dates
2012-07-10—Published
2010-11-03—Filed