期刊
ANALYTICAL METHODS
卷 6, 期 13, 页码 4643-4651出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ay00421c
关键词
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资金
- National Natural Science Foundation of China [21065005, 21165010, 21101146]
- Young Scientist Foundation of Jiangxi Province [20112BCB23006, 20122BCB23011]
- Foundation of Jiangxi Educational Committee [GJJ13243, GJJ13244]
- State Key Laboratory of Electroanalytical Chemistry [SKLEAC201310]
- Open Project Program of Key Laboratory of Functional Small organic molecule
- Ministry of Education
- Jiangxi Normal University [KLFS-KF-201214, KLFS-KF-201218]
- Innovation Foundation for graduate students of Jiangxi Normal University [YJS2013076]
A novel nonenzymatic glucose sensor was prepared based on a Cu coralloid granule/polyaniline (PANI)/reduced graphene oxide (rGO) nanocomposite modified glassy carbon electrode (GCE). The PANI nanowire array/rGO nanocomposite was synthesized by using an in situ chemical oxidative polymerization method, and then was cast onto a GCE surface. Cu coralloid granules were constructed on PANI/rGO/GCE by constant potential deposition. The Cu/PANI/rGO nanocomposite was characterized by scanning electron microscopy, X-ray energy dispersive spectroscopy, X-ray powder diffraction and Fourier transform infrared spectroscopy. The electrochemical and electrocatalytic behaviors of the Cu/PANI/rGO/GCE towards glucose oxidation were evaluated by cyclic voltammograms, electrochemical impedance spectroscopy, chronoamperometry and amperometric method. The amperometric response of Cu/PANI/rGO/GCE showed high catalytic activity towards the oxidation of glucose with a wide linear range of 0.01-9.66 mM, high sensitivity of 603.59 mu A cm(-2) mu M-1 and low detection limit of 1.34 mM (S/N - 3).
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