Title: Denitration Mechanism of Nano Cubic Zirconium Oxide-based Catalysts
Abstract: The MnOx-CeO2/c-ZrO2 catalyst was prepared by impregnation with nanosized c-ZrO2 as the vector.The influence of active component and reaction temperature on catalytic performance of catalyst was investigated while surface characteristics of catalyst and catalytic mechanism were discussed.The NO conversion improved as active component increased and reaction temperature rose.The NO conversion of 2.5% MnOx-CeO2/ c-ZrO2 catalyst at 100 ℃ was 65.3% while 15% MnOx-CeO2/c-ZrO2 catalyst was 97.9%.The results of XRD,SEM,BET and H2-TPR analysis showed that surface structure of loaded catalyst was good for denigration.The results of NH3-TPD shows Lewis acid sites at the surface of MnOxCeO2/ c-ZrO2 catalyst was strong and NH3 adsorbed at Lewis acid sites was coordination NH3 which generated N2 and H2O through intermediate product NH2NO.
Publication Year: 2015
Publication Date: 2015-01-01
Language: en
Type: article
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