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Chemical looping partial oxidation of methane using a sole CO2 oxidant (CL‐POM‐CO2) is an emerging technology for synthesis gas generation and CO2 utilization, which is highly dependent on an oxygen carrier (OC). In this work, Fe‐substituted La‐hexaaluminate as the OC was found to exhibit good reactivity and stability during 50 periodic CH4/CO2 redox cycles due to the formation of magnetoplumbite...
The catalytic activity of hexaaluminate is closely related to the chemical state of substituted active metal ions. In this paper, the mechanism of stabilization of Fe ions in β I -Al 2 O 3 and magnetoplumbite-type Fe-substituted Ba hexaaluminates was proposed at the molecule level on the basis of X-ray diffraction, Rietveld refinement, and Mössbauer spectroscopy. Fe 3+...
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