Array of NiMn 2 O 4 nanosheets for glucose sensing application

Herein, we report the facile and low-cost thin-film electrodeposition of Nickel Manganese Oxide (NiMn 2 O 4 ) nanosheets grown on Indium Tin Oxide (ITO) substrate by Amperometric technique. The crystal structure, surface morphology and compositional study of the nanosheets are characterized by X-ray diffraction, field-emission scanning electron microscopy, energy dispersive X-ray analysis and Raman spectroscopy. The synthesized NiMn 2 O 4 nanosheets are interconnected with themselves to construct arrays of nanosheets which show high electrochemical activity towards glucose analytes. The non-enzymatic glucose sensing performance of the nanosheets is studied more extensively which shows sensitivity of about 5 µAµM −1 cm −2 in the linear range 5–70 µM and its response time is 17 s. It is claimed that NiMn 2 O 4 nanosheets arrays are more superior for glucose sensing applications due to their high stability, massive surface area and enormous active edges.