“…Metal-organic frameworks (MOFs), as a novel porous material, have attracted extensive attention in the fields of catalysis [ 17 ], separation [ 18 ], energy storage [ 19 ], and drug delivery [ 20 ] due to their high porosity, large surface area, and structural diversity. Recently, MOFs have also been used for electrocatalytic sensing, but their inherent low conductivity severely affects the efficiency of charge transport, so they need to be combined with other conductive materials to improve their electrochemical performance [ 21 , 22 ]. However, composite materials will reduce the specific surface area and stability of the MOF, and the composite interface is difficult to accurately control.…”