Porous manganese–cobalt oxide microspheres with tunable oxidase mimicking activity for sulfide ion colorimetric detection

Abstract

Here, we report the controllable synthesis of porous Mn_xCo_1−xO microspheres and tunable catalytic activity in the oxidase mimicking reaction. Mn_0.6Co_0.4O possesses the best oxidase mimicking activity and can be used successfully in sulfide ion colorimetric detection with a low detection limit of 0.1 μM.