Fig. 4
Standard free energy changes (a), and standard enthalpy changes (b) of the formation reactions of Fe2O3, NaFe3(SO4)2(OH)6, and KFe3(SO4)2(OH)6 and the decomposition reactions of NaFe3(SO4)2(OH)6 and KFe3(SO4)2(OH)6.
Fig. 4 | Scientific Reports
