F Bonet , V Delmas , S Grugeon , R Herrera Urbina , P-Y Silvert , K Tekaia-Elhsissen
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Synthesis of monodisperse Au, Pt, Pd, Ru and Ir nanoparticles in ethylene glycol
Au, Pt, Pd, Ru and Ir nanoparticles with a narrow size distribution have been synthesized by chemical reduction of their corresponding metal species in ethylene glycol. In all cases, the average particle size was found to be smaller than 10 nm. Particle size was mainly controlled by varying the initial total metal concentration, the reaction temperature, and the concentration of PVP. With the exception of Ir, metal particle agglomeration and sintering was prevented by the addition of PVP, a well known protective agent that also aids particle dispersion.
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