High-performance non-enzymatic glucose electrochemical sensor constructed by transition nickel modified Ni@Cu-MOF

In this work, we first constructed a novel 2D nanosheet [email protected] as a high-performance catalyst electrode for Glu electro-oxidation in alkaline media. The [email protected] was studied by X-ray photo electron spectroscopy and X-ray diffraction techniques. The morphology and the structure of the [email protected] were studied by scanning electron microscopy. The [email protected] sensor presented a wide linear range (5 μM to 2500 μM), a low detection limit of 1.67 μM (S/N = 3) and a high sensitivity of 1703.33 μA mM−1 cm−2. Moreover, the [email protected] sensor exhibited excellent selectivity for common substances, inhuman serum and satisfied reproducibility. Totally, the high-performance MOF nanocomposite material possesses remarkable potential of glucose sensing applications.