Yun Shu, Bing Li, Jingyuan Chen
Jan 12, 2018
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0
Influential Citations
32
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Journal
ACS applied materials & interfaces
Abstract
Two-dimensional (2D) ultrathin nickel–cobalt phosphate nanosheets were synthesized using a simple one-step hydrothermal method. The morphology and structure of nanomaterials synthesized under different Ni/Co ratios were investigated by transmission electron microscopy, scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. Moreover, the influence of nanomaterials’ structure on the electrochemical performance for glucose oxidation was investigated. It is found that the thinnest nickel–cobalt phosphate nanosheets synthesized with a Ni/Co ratio of 2:5 showed the best electrocatalytic activity for glucose oxidation. Also, the ultrathin nickel–cobalt phosphate nanosheet was used as an electrode material to construct a nonenzymatic electrochemical glucose sensor. The sensor showed a wide linear range (2–4470 μM) and a low detection limit (0.4 μM) with a high sensitivity of 302.99 μA·mM–1·cm–2. Furthermore, the application of the as-prepared sensor in detection of glucose in human...