Fabrication of MoFe2O4/Cr-MOF//activated Carbon Nanocomposite Electrode Material for High Performance Energy Storage and Fast Response for Gluten Detection

Gluten is a high-energy protein that is present in some grains, such as wheat, rye, and barley. It has a significant impact on the food production processes. In this work, the MoFe2O4/Cr-MOF composite was synthesized using a hydrothermal method. To estimate the electrochemical properties, the MoFe2O4/Cr-MOF composite-based electrode is designed, which shows the specific capacity (Qs) of 1050 Cg−1 at 3 mVs−1 because of the enhancement in redox-active sites and conductivity. The hybrid electrode MoFe2O4/Cr-MOF//AC revealed Qs of 337 Cg−1. In addition, the device demonstrated an exceptional energy density (Ed) of 55 Whkg−1 and a power density (Pd) of 2200 Wkg−1. The device showed capacity retention of 88% and Coulombic efficiency of 96% after 5000 cycles. Furthermore, the MoFe2O4/Cr-MOF composite is utilized for the detection of gliadin. The electrochemical sensor showed an extraordinary sensitivity of 732 μA mM−1 cm−2 against the gluten. The MoFe2O4/Cr-MOF nanocomposite has diverse potential for creating hybrid devices used in applications related to food and energy harvesting.