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- W1986175097 abstract "The catalyst of MnO x -CeO x /ACF prepared by impregnation method was used for low-temperature selective catalytic reduction (SCR) of NO with NH 3 , and more than 90% NO conversion was obtained at 230°C. Fe、Cu or V was used respectively to prepare transition metal modified MnO x -CeO x / ACF catalysts which had lower catalytic activity than that over MnO x -CeO x /ACF. SEM, N2 adsorption and NH 3 -TPD were used to analyze the catalysts. The results showed that transition metal modified catalysts had a reduced surface area, pore volume and surface acidity. SO 2 had a negative effect on SCR performance of the catalysts. Fe modified catalyst exhibited SO 2 tolerance in the first 6h in the presence of 100ppm SO 2 . Thermal treatment in N 2 at 350°C was used to regenerate the deactivated catalysts by SO 2 . The decomposition of ammonium salts recovered the catalytic activity to some extent. The sulfated active components in deactivated catalysts after the thermal treatment enhanced the surface acidity of the catalysts." @default.
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- W1986175097 date "2011-11-01" @default.
- W1986175097 modified "2023-10-12" @default.
- W1986175097 title "Research of Catalytic Performance over Transition Metal Modified MnO<sub>x</sub>-CeO<sub>x</sub>/ACF Catalysts" @default.
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- W1986175097 doi "https://doi.org/10.4028/www.scientific.net/amr.383-390.1945" @default.
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