fig2
Figure 2. The thermocell working diagram (A) [Fe(CN)6]3-/[Fe(CN)6]4-. Reproduced with permission[33]. Copyright 2022, Royal Society of Chemistry; (B) Fe2+/Fe3+. Reproduced with permission[42]. Copyright 2024, Royal Society of Chemistry; (C) Cu/Cu2+. Reproduced with permission[71]. Copyright 2024, Royal Society of Chemistry; (D) I-/I3- Reproduced with permission[72]. Copyright 2016, American Chemical Society.