MXene‐Boosted Nickel‐Based Metal‐Organic Framework Composite With Enhanced Conductivity and Catalytic Activity for Highly Sensitive Glucose Detection

ABSTRACT The design and synthesis of highly efficient electrochemical sensors are pivotal to electrochemical conversion technologies. This study successfully synthesized a composite material comprising two‐dimensional (2D) conductive MXene and nickel‐based metal–organic framework (Ni‐MOF) by stirring at room temperature. By adjusting the amounts of dimethylformamide (DMF) and MXene during synthesis, the morphology of Ni‐MOF was effectively controlled, yielding both two‐dimensional nanosheets and three‐dimensional nanoribbon structures. The optimized composite (designated 1.5M200@Ni‐MOF) exhibits enhanced conductivity, a larger specific surface area (85.54 m 2 g −1 ), and an excellent multilevel pore structure, significantly promoting electron transfer and ion diffusion. Electrochemical testing indicates that the 1.5M200@Ni‐MOF modified electrode achieves a rapid response time of 1.3 s, high sensitivity of 2238.07 μA mM −1 cm −2 , and a low detection limit of 0.081 μM in glucose detection. This composite material exhibits outstanding resistance to common interferents such as dopamine, uric acid, ascorbic acid, and NaCl. This study reveals the synergistic effect between MXene and Ni‐MOF, opening up novel avenues and possibilities for designing highly efficient electrocatalytic glucose sensing materials.