Radiation-Assisted Synthesis of Iridium and Rhodium Nanoparticles Supported on Polyvinylpyrrolidone
The controlled synthesis of rhodium (Rh) and iridium (Ir) nanoparticles was carried out by gamma irradiation of aqueous solutions containing the metal precursor salt and polyvinylpyrrolidone (PVP). The nanoparticles were synthesized at various PVP and precursor concentrations with absorbed doses between 20 and 60 kGy. Nanoparticles with average sizes of 2.4 and 2.6 nm and narrow particle size distributions were obtained at metal precursor/PVP concentrations of 6/0.3 and 6/3 mM for Ir and Rh when irradiated at 60 kGy. The interaction of the nanoparticles surfaces with the PVP was studied.
J. V. Rojas and C. H. Castano Giraldo, "Radiation-Assisted Synthesis of Iridium and Rhodium Nanoparticles Supported on Polyvinylpyrrolidone," Journal of Radioanalytical and Nuclear Chemistry, vol. 302, no. 1, pp. 555-561, Kluwer Academic Publishers, Oct 2014.
The definitive version is available at https://doi.org/10.1007/s10967-014-3291-y
Mining and Nuclear Engineering
Keywords and Phrases
Gamma irradiation; Iridium nanoparticles; Radiation induced chemistry; Radiolysis synthesis; Rhodium nanoparticles
International Standard Serial Number (ISSN)
Article - Journal
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