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Temporary phase segregation processes during the oxidation of (Fe0.7Mn0.3)0.99O in N2---H2O atmosphere |
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| Authors: | K. Ehrensberger P. Kuhn V. Shklover H. R. Oswald |
| Affiliation: | a Paul Scherrer Institute, CH-5232, Villigen-PSI, Switzerland b ETH, Institute for Crystallography, CH-8092, Zurich, Switzerland c University of Zurich, Institute for Inorganic Chemistry, CH-8057, Zurich, Switzerland |
| Abstract: | A two-step thermochemical cycle with the ternary metal oxide system (Fe1 − xMnx)3O4/(Fe1 − xMnx)1 − yO is applied to convert solar energy to chemical energy. Experimental investigations on the water splitting reaction of (Fe1 − xMnx)1 − yO revealed temporary formation of a manganese rich rock salt phase and an iron rich spinel phase due to phase segregation processes. |
| Keywords: | Phase segregation Ternary metal oxides Water splitting Thermochemical cycle |
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