Phase and Shape Dependent Non–enzymatic Glucose Sensing Properties of Nickel Molybdate

In this work, we demonstrate a facile low temperature synthesis approach to tune α and β‐NiMoO 4 by controlling the urea concentration. Comparative non‐enzymatic electrochemical glucose sensing properties of NiMoO 4 nanomaterials with α and β phases have been studied in detail. The mechanisms related to the phase and morphology transformation from α‐NiMoO 4 nanoparticles to β‐NiMoO 4 nanosheets are proposed and discussed by thoroughly characterizing the as‐prepared materials. It is observed that the α‐NiMoO 4 exhibits sensitivity of 0.208 μAμM −1 cm −2 whereas sensitivity of 1.057 μAμM −1 cm −2 is achieved for the β‐NiMoO 4 . Thus, it is confirmed that β‐ NiMoO 4 nanosheets perform five times high glucose sensing performance as compared to the α‐NiMoO 4 nanoparticles and demonstrates its application as high‐performance glucose sensor.