期刊
ELECTROANALYSIS
卷 28, 期 7, 页码 1547-1552出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201501145
关键词
Cu2O nanocubes; Co3O4 nanohexagons; modified electrode; nonenzymatic; glucose
资金
- Ministry of Science and Technology
- Ministry of Education of Taiwan (Republic of China)
- National Taipei University of Technology, Taiwan
Copper (I) oxide nanocubes (Cu2O NCs) covered with cobalt oxide nanohexagons (Co3O4 NHs) were prepared through simple chemical method. Here, ascorbic acid is used as reducing and capping agent for the synthesis of nanocubes and nanohexagons. Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Energy-dispersive X-ray spectroscopy (EDX) and X-ray diffraction spectroscopy (XRD) were employed to confirm the prepared nanocomposite. Cu2O NCs-Co3O4 NHs nanocomposite is drop cast on the glassy carbon electrode (GCE) for the fabrication of glucose sensor. The fabricated Cu2O NCs-Co3O4 NHs/GCE exhibited a better electrocatalytic activity towards the determination of glucose than that of individually fabricated Cu2O NCs and Co3O4 NHs modified GCE. Our finding exhibited a wide linear range from 1 mu M to 5330 mu M with LOD of 0.63 towards glucose. In addition, the sensor attained appreciable stability, repeatability and reproducibility. Practicality of the sensor was demonstrated in human serum samples. The main advantages of the fabricated sensor are simple, biocompatible, cost effective, fast response and highly stable electrode surface.
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