Highly active catalyst using zeolitic imidazolate framework derived nano-polyhedron for the electro-oxidation of l-cysteine and amperometric sensing.

Herein, N-doped porous carbon nano-polyhedron embedded with CoO (CoO-NPCN) was reported for the electro-catalytic oxidation and amperometric detection of l-cysteine. CoO-NPCN was synthesized by the two-step redox calcination of zeolitic imidazolate framework (ZIF). Surface morphology characterization revealed that CoO-NPCN displayed a uniform size and rhombic dodecahedral shape.