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- W2944335440 abstract "The physicochemical and catalytic properties of La0.8Ce0.2Mn1–xFexO3 were studied by NO + CO activity tests and a series of characterizations. Improvement of catalytic activity for the La0.8Ce0.2Mn0.6Fe0.4O3 catalyst was related to its relatively high surface-dispersed Mn4+–O–Mn3+ and Mn4+–O–Fe3+ species, which seemed to be the primary active component. In situ diffuse reflectance infrared Fourier transform spectroscopy results suggested the following: (1) CO was oxidized by oxygen originating from Mn4+–O–Mn3+ and Mn4+–O–Fe3+ species, which could be reduced and produced surface oxygen vacancies and surface synergistic oxygen vacancies. (2) Preferential adsorption of NO on the catalyst surface produced some nitrite/nitrate species, which could be desorbed, transformed, or dissociated during heating. (3) Active sites produced by the desorption, transformation, and dissociation of nitrate/nitrite species could also be used for CO adsorption, resulting in the formation of the Fe2+–CO species, which could react with N2O. Finally, a possible reaction mechanism was suggested to further understand the NO + CO reaction." @default.
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- W2944335440 date "2019-05-07" @default.
- W2944335440 modified "2023-10-16" @default.
- W2944335440 title "In Situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy Study of NO + CO Reaction on La<sub>0.8</sub>Ce<sub>0.2</sub>Mn<sub>1–<i>x</i></sub>Fe<sub><i>x</i></sub>O<sub>3</sub> Perovskites: Changes in Catalytic Properties Caused by Fe Incorporation" @default.
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- W2944335440 doi "https://doi.org/10.1021/acs.iecr.9b01088" @default.
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