Abstract
A MoO3-MoS2/Ni porous micro/nano array was successfully prepared by two-step electrodeposition using a screen-printed electrode as the substrate and colloidal spheres as a template. Owing to defects in the MoO3-MoS2 micro/nanostructure and the characteristics of the edge active sites, the modified electrode performs well as a non-enzymatic glucose sensor. The sensitivity of the screen-printed electrode modified with MoO3-MoS2/Ni porous array is 2278 μA mM−1 cm−2 in the linear range of 0.5 μM–2 mM and 1421 μA mM−1 cm−2 in the linear range of 2–5.5 mM, with a low detection limit of 0.2 μM. The structure of the MoO3-MoS2/Ni porous array electrode is ordered, and the preparation and test procedure are simple. The use of a screen-printed electrode as a substrate confers novelty to the synthesis strategy of the non-enzymatic glucose sensor, with good prospects for commercial application.
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