STEP water splitting

Steinfeld A (2002) Solar hydrogen production via a two-step water-splitting thermochemical cycle based on Zn/ZnO redox reactions. Int J Hydrogen Energy 27 611-619... 

Hybrid Solar Thermal/Electrochemical/Photo (STEP) Water Splitting... 

Semiconductors with band gaps smaller than 1.23 eV can be combined to drive water-oxidation/reduction processes separately via multiphoton processes. An example of fhis is fhe two-step water-splitting system using a reversible redox couple (A/R) shown in Figure 7 (Fujihara et al., 1988 Kudo et al., 1999 Sayama et al., 1987 Termakone and Wickramanayake, 1986) with two photocatalysts with different band-gap and band... 

Steinfeld, A., Solar Hydrogen Production via Two-Step Water Splitting Thermochemical Cycle Based on Zn/ZnO Redox Reaction, Int. J. 

Tamaura, Y., Steinfeld, A., Kuhn, P., Ehrensberger, K., Production of solar Hydrogen by a novel, 2-step, water-splitting thermochemical cycle. Energy 20(4), 325-330, 1995. 

Hydrogen production with two-step water splitting of CuFe2O4... 

Lundberg M., Model calculations on some feasible two-step water splitting process. Inter. J. Hydrogen Energy, 1993 18 369-376. 

Hydrogen production by a 2-step water splitting thermochemical cycle can be based on metal oxides redox pairs. A two-step, water-split-ting cycle, based on metal oxides redox pairs bypasses the separation hurdle. Multi-step thermochemical cycles can allow the use of more moderate operating temperatures, but their efficiency is still limited by the irreversibility associated with heat transfer and product separation. 

Charvin, P., Abanades, S., Flamant, G., Lemort, F., 2007. Two-step water splitting thermo-chemical cycle based on iron oxide redox pair for solar hydrogen production. Energy 32 (7), 1124-1133. 

Le Gal, A., Bion, N., Le Meider, T., Harle, V., 2013. Reactivity of doped ceria-based mixed oxides for solar thennochemical hydrogen generation via two-step water-splitting cycles. Energy and Fuels 27, 6068—6078. 

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