Metal–Organic Framework‐Derived ZnCoP Nanopolyhedra as an Efficient Electrocatalyst for Electrochemical Dopamine Detection

Rapid and efficient detection of dopamine is crucial for disease prevention and clinical diagnosis. Herein, ZnCoP nanopolyhedra synthesized via a metal–organic framework (MOF)‐derived phosphidation route are employed as an electrocatalyst for electrochemical dopamine sensing. The constructed sensor exhibits outstanding analytical performance, featuring a wide linear range (0.5–1500 μM), high sensitivity (1038 μA mM ⁻¹ cm ⁻² ), and a low detection limit of 0.19 μM. Additionally, the sensor demonstrates excellent selectivity, long‐term stability, and reliable repeatability. The superior performance is attributed to the well‐defined polyhedral architecture inherited from the MOF precursor, which offers abundant electroactive sites and facilitates efficient electron transfer. These results establish ZnCoP nanopolyhedra as a promising sensing platform for dopamine detection, with strong potential for applications in medical diagnostics and bioanalytical monitoring.