Feasibility studies of chemical reactions for thermochemical water splitting cycles of the iron-chlorine, iron-sulfur and manganese-sulfur families

Abstract The number of chemical reactions in water splitting cycles of the iron-chlorine, iron-sulfur and manganese-sulfur families is quite high from a thermodynamic point of view. Applying chemical engineering criteria to the reactions allows the cancelling of unfavorable steps. The remaining reactions can be systemized to typical groups. Experimental results of these groups of reactions are presented, depending on temperature, ratio of reactants and reaction performance. The results are discussed with respect to the performance of the chemical reactions in water splitting cycles.