Controlled Synthesis and Characterization of Nobel Metal Nanoparticles

• DOI: 10.4236/snl.2012.23007
• Publication Date: 2012-07-27T03:47:14Z
• Authors: Huixiao Hei; Rui Wang; Xiaojun Liu; Long He; Guizhen Zhang
• Keywords: Noble metal; Particle (ecology); Platinum nanoparticles

In this work, monodispersed, well-shaped platinum (3.2 - 6.4 nm), rhodium (2.4 5.1 palladium 5.3 nm) nanoparticles capped with poly(vinylpyrrolidone) were synthesized by a polyol reduction method in an ethylene glycol solution at temperature of 190℃. The influences synthetic parameters on the size and morphology noble metal have been systematically investigated. characterized means UV-vis, laser scattering particle distribution analysis (LSPSDA) transmission electron microscopy (TEM). experimental results showed that metals nanoparticles, which was spherical, increased raise precursor concentration as well amount PVP. optimal molar ratio PVP/metal for fabrication Pt, Rh, Pd uniform 10 0.1 mM, respectively. morphologies Rh nm polygons, including hexagons, pentagons, triangles.