| 초록 |
Anions are utilized for colloidal syntheses of metal nanoparticles present in metal precursor and additives. Halide ions influence entire steps of formation of Pt nanoparticles such as reduction of precursor, nucleation, and particle growth. The oxidation states of platinum precursor were measured via in-situ X-ray absorption spectroscopy and determined the rate of reduction quantitatively. Polanyi relationship was revealed on reduction kinetics of platinum precursors. Halide ions influence on the particle size distribution through changing the rate of nucleation, surface growth, and coalescent growth of platinum nanoparticle in colloidal synthesis. |
