Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10412690 | Sensors and Actuators B: Chemical | 2015 | 8 Pages |
Abstract
Platinum-cobalt (PtxCo1âx, x = 0.70, 0.55) alloy nanoparticles have been successfully fabricated by the chemical reduction method, using carbon (Vulcan XC-72) as support. The physical properties of the materials were characterized by X-ray diffraction, and transmission electron microscopy, respectively. The electrochemical performance of the PtxCo1âx/C catalysts was evaluated by cyclic voltammetry, electrochemical impedance spectroscopy and chronoamperometry. Electrochemical measurements indicated that the oxidation current of glucose is linear to its concentration from 0.10 to 14.20 mM with high sensitivity of 73.60 μA mMâ1 cmâ2. In addition, the interference from the oxidation of fructose, uric acid, acetamidophenol and ascorbic acid could be effectively avoided. Meanwhile, the non-enzymatic glucose sensors exhibited excellent selectivity, stability and repeatability. Thus, this novel non-enzyme sensor has potential application in glucose detection.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Qu Sheng, He Mei, Huimin Wu, Xiuhua Zhang, Shengfu Wang,