fig12

Figure 12. (A) CO₂RR and (B) OER photocatalytic pathways within C₂N/aza-CMP heterostructure. Red balls stand for O atoms, while the white balls indicate H atoms. (Reproduced with permission^[66]. Copyright 2020, Elsevier); (C) The diagrams regarding free energy for the 8e^- pathways of CO₂RR within C₂N/aza-CMP heterostructure at diverse voltages. (Reproduced with permission^[66]. Copyright 2020, Elsevier); (D) The diagrams regarding free energy for the 4e^- pathways of OER within C₂N/aza-CMP heterostructure at diverse voltages. The photogenerated holes and electrons provide the potentials of U_h = 2.24 V and U_e = 0.53 V, separately. (Reproduced with permission^[66]. Copyright 2020, Elsevier).