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 MoFe 2 O 4 /Cr-MOF composite was synthesized using a hydrothermal method. To estimate the electrochemical properties, the MoFe 2 O 4 /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 MoFe 2 O 4 /Cr-MOF//AC revealed Qs of 337 Cg −1 . In addition, the device demonstrated an exceptional energy density (E d ) of 55 Whkg −1 and a power density (P d ) of 2200 Wkg −1 . The device showed capacity retention of 88% and Coulombic efficiency of 96% after 5000 cycles. Furthermore, the MoFe 2 O 4 /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 MoFe 2 O 4 /Cr-MOF nanocomposite has diverse potential for creating hybrid devices used in applications related to food and energy harvesting.