Abstract
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 μA mM−1 cm−2, a wide linear range from 0.20 μM to 1.90 mM (R2 = 0.9934), a low detection limit of 0.04 μM 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.
Original language | English |
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Pages (from-to) | 853-860 |
Number of pages | 8 |
Journal | Sensors and Actuators, B: Chemical |
Volume | 266 |
DOIs | |
Publication status | Published - 1 Aug 2018 |
Externally published | Yes |
Keywords
- Arrays
- Copper
- Coral
- Electrodeposition
- Glucose sensor