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Surfactant-free Palladium Nanoparticles on Protein Particle Scaffold as High Performance Catalysts
Yeonhwa YU,Euiyoung JUNG,Taekyung YU,Jeewon LEE 한국생물공학회 2021 한국생물공학회 학술대회 Vol.2021 No.10
Nano-biocomposite which is a combined material of metal nanoparticles and biomaterials has the great potential to be used as a good catalyst in various reactions because of its improved catalytic properties including high selectivity, durability, and possibility for tandom reactions. Here we report a synthesis and catalytic studies of palladium nanoparticles dispersed protein particles (PdNP-PPs). PdNP-PPs were easily synthesized by reducing Pd precursor in the presence of the protein particles. Due to the amine functional groups regularly expressed on the surface of the protein particles, the synthesized PdNP-PPs have well dispersed small and surfactant-free Pd nanoparticles on their surface. The PdNP-PPs exhibited high catalytic activity and good recyclability compared with polyvinylpyrrolidone (PVP)-coated Pd nanoparticles in the hydrogenation of p-nitrophenol into p-aminophenol because of clean and large surface area of Pd nanparticles and stable surface of charge of the protein particles.