ChemInform Abstract: Formation of Cu-MFI NO Decomposition Catalyst via Reductive Solid- State Ion Exchange.
Abstract
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ChemInform Abstract
Cu+ ion-exchanged zeolite catalysts approaching the theoretical exchange limit of 1 Cu/framework Al are prepared by heating intimate mixtures of CuO and H-MFI zeolite in the absence of O2. Under these conditions the autoreduction of CuO and the introduction of Cu+ cations into the zeolite by solid-state ion-exchange is stimulated as shown by ESR, 1-propanamine thermal desorption and TPR. The catalyst, exhibiting similarities to “over exchanged” Cu2+-MFI material, is highly active in the decomposition of NO to N2 and O2.
