Fabrication of Flower-Shaped Pt-Au-graphene Nanostructures and Their Application in Electrochemical Detection of Glucose
10.11895/j.issn.0253-3820.140234
- VernacularTitle:花瓣状铂-金-石墨烯纳米结构的制备及其在葡萄糖测定中的应用
- Author:
Yaojuan HU
;
Wenji DU
;
Changyun CHEN
- Publication Type:Journal Article
- Keywords:
Platinum-gold-graphene oxide nanostructures;
Electrochemical reduction method;
Glucose oxidation reaction;
Non-ezymatic biosensor
- From:
Chinese Journal of Analytical Chemistry
2014;(9):1240-1244
- CountryChina
- Language:Chinese
-
Abstract:
The flower-shaped Pt-Au-graphene oxide ( GO ) 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 the Pt-Au nanoparticles. A glucose nonenzyme sensor could be easily developed with the use of the flower-shaped Pt-Au-GO nanostructure. The sensor exhibited low detection limit (4. 0 μmol/L), a wide and useful linear range (1. 0-25. 0 mmol/L), and high sensitivity (26. 3 μA cm-2 ( mmol)-1 ) . In addition, the sensor exhibited excellent reproducibility, stability and selectivity for the determination of glucose, and it could be used to analyze real samples.
