Investigation of reactive perovskite materials for solar fuel production via two-step redox cycles: thermochemical activity, thermodynamic properties and reduction kinetics
Résumé
The investigation and optimization of solar fuels production by H 2 O and CO 2 splitting reactions using non-stoichiometric redox materials as oxygen carriers relies on materials-related studies. The thermochemical cycles performance strongly rely on the thermodynamics and kinetics of redox reactions, as well as chemical composition and morphology of the reactive redox materials commonly based on ceria and perovskites. This study focusses on the evaluation and selection of suitable nonstoichiometric metal oxides for two-step thermochemical cycles with high fuel production yields, rapid reaction rates, and performance stability. The redox activities of different A-and B-site substituted perovskite materials (ABO 3) were experimentally investigated (with A=La,
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