fig8
Figure 8. (A) Conceptual schematic of GDE using coconut husks-derived biochar. (B) FECO as a function of cathodic potential for Ag/CH-900. (C) Long-term stability test of Ag/CH-900. (A-C) Reprinted with permission[152]. Copyright 2023, Elsevier. (D) FECO and FEH2 for all prepared samples. (E) Schematic illustration of MEA cell. (F) FECO and corresponding current density of CP-NPC-3. (D-F) Reprinted with permission[154]. Copyright 2025, Elsevier.
