A supported low-temperature denitration catalyst is prepared through the incipient impregnation method,with transition metals,rare earth metals,alkaline earth metals and main group metals respectively as active components,and molecular sieves such as REY,USY,ZSM-5,4A,Hβ,NaX,NaY and SAPO-34 as carriers,respectively.The physical and chemical properties of the prepared catalysts are characterized by means of XRD,BET and H2-TPR,and their catalytic performance for direct N2O decomposition at low-temperature is also explored.Results show that Hβ molecular sieves loaded with Fe-Co as active components exhibit the best catalytic performance.The corresponding loading amount of Fe and Co is 12％and 6％,respectively.The optimum calcination temperature is 430℃.Fe12 Co6/Hβ catalyst possesses high activity and thermal stability,implying a good industrial application prospect.
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