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A series of Nb modified CeAlOx catalysts were prepared by hydrothermal method and tested in the selective catalytic reduction of NO with NH3. The catalyst with an Nb/Al molar ratio of 1 : 1 exhibited the best catalytic activity and high resistance to sulfur poisoning. Nitrogen adsorption measurements, XRD, NH3-TPD, H2-TPR and XPS analyses as well as in situ DRIFTS technique were applied to characterize...
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