Iron-based oxide with high miller index facet Fe2O3(104) effectively promotes oxygen transfer at different oxidation states for oxidizing coal molecules into CO2 and H2O during chemical looping combustion of solid fuel.
Reaction activities of Ni-doped and Cu-doped Fe2O3 oxygen carriers (OCs) with CO were investigated using thermo gravimetric (TG-DTG).The structures of the prepared OC were characterized by X-ray diffract meter (XRD).TG-DTG investigations indicated that rational Ni and Cu doping could efficiently enhance the reactivity of Fe-base oxygen carrier for oxidizing CO under different conditions. And Fe-based OC doped with 20 wt. % Ni can realize the highest reactivity.
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