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- W2991426655 abstract "Titanium dioxide-supported manganese oxide and cerium oxide noted as MnOx/TiO2, CeO2/TiO2, and MnOx–CeO2/TiO2 were prepared by sol–gel method and their low-temperature (<200 °C) catalytic activity toward selective catalytic reduction (SCR) of NO with NH3 were evaluated. The MnOx–CeO2/TiO2 catalyst exhibited optimal low-temperature performance that is nearly 98% of NO was abated below 200 °C. That is because MnOx/TiO2 combined with CeO2 improves redox ability and surface acidity of the catalyst, mainly due to the incorporation of Mn atoms into bulk CeO2 that creates active Mn–O–Ce structures. In situ Fourier transform infrared (FTIR) spectroscopy suggested that the coordinated NH3 on Lewis acid sites were favored to react with NO and the NH3-SCR over MnOx–CeO2/TiO2 catalyst mainly followed the E–R mechanism at 200 °C. Furthermore, the reaction rate constant and apparent activation energy of the NH3-SCR reaction on the MnOx–CeO2/TiO2 catalyst confirmed the promotional effects of Ce addition on the activity of Mn-based catalyst." @default.
- W2991426655 created "2019-12-05" @default.
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- W2991426655 date "2019-11-20" @default.
- W2991426655 modified "2023-10-03" @default.
- W2991426655 title "Mechanism and Kinetics Study on Low-Temperature NH<sub>3</sub>-SCR Over Manganese–Cerium Composite Oxide Catalysts" @default.
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- W2991426655 doi "https://doi.org/10.1021/acs.iecr.9b04780" @default.
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