Facilely electrodeposited coral-like copper micro-/nano-structure arrays with excellent performance in glucose sensing

Xiangjian Liu, Ling Long, Wenxiu Yang, Lulu Chen, Jianbo Jia*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)

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 languageEnglish
Pages (from-to)853-860
Number of pages8
JournalSensors and Actuators, B: Chemical
Volume266
DOIs
Publication statusPublished - 1 Aug 2018
Externally publishedYes

Keywords

  • Arrays
  • Copper
  • Coral
  • Electrodeposition
  • Glucose sensor

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