期刊
BIOSENSORS & BIOELECTRONICS
卷 81, 期 -, 页码 46-53出版社
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2016.02.027
关键词
Hollow Co3O4 nanododecahedra; Nonenzyme; Glucose biosensor; Glucose fuel cell
类别
资金
- National Natural Science Foundation of China [21566025, 51272099, 51238002]
- Natural Science Foundation of Jiangxi Province [20152ACB21019]
Cobalt oxide hollow nanododecahedra (Co3O4-HND) is synthesized by a facile thermal transformation of cobalt-based metal-organic framework (Co-MOF, ZIF-67) template. The morphology and properties of the Co3O4-HND are characterized by a set of techniques, including transmission electron microscope (TEM), powder X-ray diffraction (XRD), scanning electron microscope (SEM) and Brunner-Emmet-Teller (BET). When tested as a non-enzymatic electrocatalyst for glucose oxidation reaction, the Co3O4-HND exhibits a high activity and shows an outstanding performance for determining glucose with a wide window of 2.0 mu M to 6.06 mM, a high sensitivity of 708.4 mu A mM(-1) cm(-2), a low detection limit of 0.58 mu M (S/N=3), and fast response time(< 2 s). Based on the nonenzymatic oxidation of glucose, Co3O4-HND could be served as an attractive non-enzyme and noble-metal-free electrocatalyst in glucose fuel cell (GFC) due to its excellent electrochemical properties, low cost and facile preparation. (C) 2016 Elsevier B.V. All rights reserved.
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