Small Naked Pt Nanoparticles Confined in Mesoporous Shell of Hollow Carbon Spheres for High-Performance Nonenzymatic Sensing of H₂O₂ and Glucose.

ABSTRACT: Nonenzyme direct electrochemical sensing of hydrogen peroxide and glucose by highly active nanomaterial-modified electrode has attracted considerable attention. Among the reported electrochemical sensing materials, hollow carbon sphere (HCS) is an attractive carbon support because of its large specific surface area, porous structure, and easy accessibility for target molecules. In this study, naked Pt nanoparticles with average size of 3.13 nm are confined in mesoporous shells of hollow carbon spheres (Pt/HCS) by using one-step synthesis, which can not only produce highly dispersed Pt nanoparticles with clean surface, but also avoid the relatively slow impregnation-reduction process. The surface area of the obtained Pt/HCS (566.30 m² g^-1) is larger than that of HCS, a

SUBMITTER: Zhang C 

PROVIDER: S-EPMC6045407 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature