fig5

Figure 5. (A) Schematic of Gdm⁺ induced [Fe(CN)₆]^4- crystallization and enhanced Se effect in K₄Fe(CN)₆/K₃Fe(CN)₆ electrolyte; (B) The photo shows the 0.4 M K₄Fe(CN)₆/K₃Fe(CN)₆ electrolyte before and after the addition of Gdm⁺; (C) The open-circuit voltage of the liquid [Fe(CN)₆]^3-/[Fe(CN)₆]^4- system after the addition of guanidinium chloride. Reproduced with permission^[30]. Copyright 2020, American Association for the Advancement of Science; (D) A schematic illustration of the Gdm⁺ contribution to the thermogalvanic effect was enhanced in the thermocell; (E) The thermopower and conductivity of thermocells. Reproduced with permission.^[63] Copyright 2023, Wiley-VCH Verlag.