Pd nanoparticles

Due to their unique physical and chemical properties, noble metal nanoparticles, represented by platinum, gold, silver, and palladium, have been extensively studied by many scientists. Palladium is a noble metal belonging to the platinum group elements. Its elemental form is a silvery-white transition metal, soft in texture and possessing good ductility and malleability. Palladium nanoparticles, due to their unique physical, chemical, and electronic properties, have shown remarkable application potential in multiple fields. The preparation methods for palladium nanoparticles mainly include chemical reduction and physical reduction methods. Chemical reduction generally involves adding a reducing agent to reduce palladium ions to elemental palladium. Common reducing agents used include sodium citrate, sodium borohydride, and hydrogen gas. Because the chemical reduction process is relatively fast, protective agents such as polyvinylpyrrolidone (PVP) are generally added to prevent palladium particles from agglomerating.