Abstract
Ultrafine metal particles (UFMP) (iron and cobalt) have been obtained in solid-state redox reactions of cyclopentadienyl-π-(3)-1,2-dicarbollyliron or cyclopentadienyl-π-(3)-1,2-dicarbollylcobalt with elemental sulfur ((C5H5)Fe3+(C2B9H11)-S, (C5H5)Co5+C2B9H11-S). These reactions are realized by the action of elastic wave (EW) pulses on powder compositions of these substances. Study of the UFMP obtained by the ferromagnetic resonance (FMR) method has shown that the sizes ofn · Co0 UFP lie in the range from 1 to 13 nm. UFP of cobalt and iron are also formed under the action of EW on samples containing (C5H5)Fe3+(C2B9H11)-S or (C5H5)Co3+(C2B9H11)-S within the film of tetrafluoroethylene and perfluoro-4-methyl-3,6-dioxaoct-7-ene-1-sulfonyl fluoride copolymer (CP). It is shown by the FMR method that FMR lines broaden on going from powder systems to systems containing CP films. It is supposed thatn · Co0 and n · Fe0 particles interact with polymeric matrices in the course of formation and stabilization of UFMP in the matrices.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
