Study on Selective Reduction of Nitrogen Oxides on AgO/Al_2O_3 Catalyst AITranslate

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Chinese Library Classification Number:O643.36[理学—物理化学]

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Selective reduction was studied of nitrogen oxides on AgO/Al2O3 catalyst prepared by impregnation and hydrothermal coprecipitation.The results show that preparation methods of the catalyst play an important role in its catalytic effect.Prepared by hydrothermal coprecipitation,AgO/Al2O3 catalyst is more active than that by impregnation.The catalyst systems with different reducing agents have different reduction performance.AgO/Al2O3 catalyst prepared by hydrothermal coprecipitation has better water and sulfur resistance and high selective reduction activity due to strong interaction between AgO and high specific surface area Al2O3.Oxygen adsorbed on the catalyst surface greatly promotes selective oxidation of nitrogen oxides.