Bimetallic Nanoshells as Platforms for Metallo- and Biometallo-Catalytic Applications

摘要

The use of gold, silver, platinum and palladium for preparation of bimetallic nanoshells (AgAu, AgPt, and AgPdNSs, respectively) and their use for metallo-and bio-metallo catalytic applications have been described. Bimetallic nanoshells (metallo-catalysts) were employed for silane oxidation to silanols and hydrogen (H-2) production. Fast and efficient oxidation of several si-lanes was observed after only 1 h at room temperature, by employing AgPd NSs as catalyst, acetone as solvent, and water as oxidant. Interestingly, bio-metallo-catalysts (NSs-CALB) prepared from lipase attachment to the bimetallic nanoshells, displayed promising bi-catalytic activities (enzymatic: transesterification; metallic: silane oxidation).