Fabrication of Flower-shaped Pt-Au-graphene Nanostructure and its Application in Electrochemical Detection of Glucose

The flower-shaped Pt-Au-graphene nanostructures were synthesized by one-step electrochemical reduction method. The electrocatalytic activities of the nanostructures toward glucose oxidation were investigated by cyclic voltammetry. The results indicated that the nanocomposites exhibited a higher electrocatalytic activity than Pt-Au nanoparticles. A glucose nonenzymatic sensor could be easily developed with the use of the flower-shaped Pt-Au-graphene nanostructure. The sensor exhibited low detection limit (4.0 μM), wide linear range (1.0−25.0 mM), and high sensitivity (26.33 μA cm−2 mM−1). In addition, the sensor exhibited excellent reproducibility, stability and selectivity for the determination of glucose, and could be used to analyze real samples.

The flower-shaped Pt-Au-graphene nanostructures were synthesized by one-step electrochemical reduction method and exhibited higher electrocatalytic activity toward glucose oxidation reaction. A glucose nonenzymatic sensor based on the Pt-Au-graphene nanostructures exhibited low detection limit, wide linear range, and high sensitivity. In addition, the sensor exhibited excellent reproducibility, stability and selectivity, and could be used to analyze real samples.Figure optionsDownload as PowerPoint slide