One-step Redox-induced Confined Pt Nanoparticles for Reduction of Nitroaromatics

The noble metal nanoparticles sandwiched between the stable inorganic core and the thin polymer shell could not only enhance their stability, but also cut short the diffusion route of the outside reactants through polymer shell toward encapsulated noble metal nanoparticles, which has drawn great attention. However, weak compatibility among inorganic core, polymer shell, and noble metal nanoparticles makes the preparation of noble metal-confined hybrid catalysts complicated, which limits the popular application of these noble metal-based catalysts. A facile method has developed to fabricate core-shell Fe₂O₃@PEDOT/Pt nanocatalyst with tiny Pt nanoparticles highly dispersed in the polymer shell by one-step simultaneous redox deposition strategy. The confinement effect and strong coordination ability of the thin sulfur-enriched polymer shell prevents the migration and agglomeration of Pt nanoparticles during the catalytic process and improves the stability of the cata