Room temperature synthesis of colloidal platinum nanoparticles

Bulletin of Materials Science

关键词: Platinous chloride (K2PtCl4);    sodium polyacrylic acid;    platinum nanoparticles;    UV-visible;    TEM.;   

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Efficient preparation of stable dispersions of platinum nanoparticles from platinous chloride (K2PtCl4) was achieved by simultaneous addition of capping polymer material. The size of platinum nanoparticles was controlled by changing the ratio of concentration of capping polymer material to the concentration of platinum cation used. The morphology of colloidal particles were studied by means of UV-visible spectrophotometry and transmission electron microscopy (TEM). Particle size increased with low reagent concentration. The change in absorption spectra with the particle size was observed, i.e. blue shift attributed to decrease in particle size.

【 授权许可】

CC BY