期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 266, 期 -, 页码 853-860出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2018.04.007
关键词
Copper; Coral; Arrays; Electrodeposition; Glucose sensor
资金
- National Natural Science Foundation of China [21675147]
- Ministry of Science and Technology of China [2016YFC1400601]
In this work, a novel copper foil supported coral-like Cu micro-/nano-structure arrays with excellent non enzymatic glucose sensing performance was successfully fabricated by a facile electrodeposition method. Field emission scanning electron microscopy was applied to characterize the morphology involution of the resulting materials. X-ray diffraction and X-ray photoelectron spectroscopy were employed to study the crystalline phase compositions and the surface elemental state of the electrode. The results demonstrated that the open coral-like Cu-based arrays extremely enlarged the surface area of the substrate, which plays an important role in enhancing the electrochemical glucose sensing performance. The sensor exhibited a high sensitivity up to 3826 mu AmM-1 cm(-2), a wide linear range from 0.20 mu M to 1.90 mM (R-2 = 0.9934), a low detection limit of 0.04 mu M for glucose sensing. In addition, excellent selectivity and good stability were acquired owing to the robust open coral-like arrays. All these results demonstrate that the novel electrode can be a promising candidate choice for practical glucose sensing. (C) 2018 Elsevier B.V. All rights reserved.
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