Screen-printed electrode modified with MoO3-MoS2/Ni porous array for sensitive non-enzymatic glucose sensor

A MoO 3 -MoS 2 /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 MoO 3 -MoS 2 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 MoO 3 -MoS 2 /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 MoO 3 -MoS 2 /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.