Role of polyvinylpyrrolidone in the polyol synthesis of platinum nanoparticles
Yunzi Xin, Taku Nagata, Kunihiko Kato, Yuping Xu, Takashi Shirai
Abstract
the chemisorption of carbonyl oxygen on the surface of Pt NPs occurs in the case of a higher PVP/Pt ratio, suppressing particle growth and resulting in smaller Pt NPs. On the contrary, the chemical structure of PVP is tuned by the cleavage of the N-C bond and results in the chemisorption of the N atom on the surface of Pt NPs, which promotes the production of larger Pt NPs when a lower PVP/Pt ratio is applied.
Topics & Concepts
PolyvinylpyrrolidonePolyolPlatinum nanoparticlesPlatinumNanoparticleNanotechnologyMaterials scienceChemistryChemical engineeringPolymer chemistryOrganic chemistryCatalysisPolyurethaneEngineeringGold and Silver Nanoparticles Synthesis and ApplicationsNanomaterials for catalytic reactionsLaser-Ablation Synthesis of Nanoparticles