Synthesis of Colloidal Iridium Nanocatalyst by Chemical Reduction Method

Colloidal iridium nanoparticles were prepared by chemical reduction of iridium trichloride (IrCl3 ) using sodium borohydrate (NaBH4 ) as reducing agent and sodium dodecyl sulfate (SDS) as a stabilizer. Size and size distribution of synthesized colloidal Ru nanoparticles were studied by varying different parameters such as molar ratio (MR) of SDS/IrCl3 , NaBH4 /IrCl3 , effects of different stabilizers, and reducing agents. Prepared nanoparticles were characterized by transmissionelectron microscope (TEM) and dynamic light scattering (DLS). Stability of colloidal nanoparticleswas detected by Turbiscan. Stable Ir nanoparticles were dispersed on

کلیدواژه ها:

TEM ، DLS ، nanocatalyst ، nanoparticles