Complex formation in solutions for chemical synthesis of nanoscaled particles prepared by borohydride reduction process

Complex forming agents are often used in chemical synthesis of nanoscale particles by means of a borohydride reduction process. Their influence on the rate of nucleation and a growth of particles without oxide/hydroxides shell are estimated earlier. In this paper experimental data are presented about the synthesis of Fe-Nd-B-H particles from chloride water solutions by reduction with sodium borohydride, as well as synthesis of Fe-Nd- Si-B-H particles, containing silicon, by using hexafluorosilicate of iron(II). According to the estimated influence of the aqua-complex structures on the synthesis of amorphous or nanocrystalline particles, synthesis of initial complex salts - precursors trans- and cis-[bis(ethylenediamine)dichloro cobalt(III)] chloride is carried out. The influence of the metal complex used in water solutions by a reduction with sodium borohydride on the composition, the structure and specific surface area of prepared nanoscale particles is investigated.