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F-V2O5-WO3/TiO2 catalysts were prepared by the impregnation method. As the content of F ions increased from 0.00 to 0.35 wt.%, the NO conversion of F-V2O5-WO3/TiO2 catalysts initially increased and then decreased. The 0.2F-V2O5-WO3/TiO2 catalyst (0.2 wt.% F ion) exhibited the best denitration (De-NOx) performance, with more than 95% NO conversion in the temperature range 160-360°C, and 99.0% N2 selectivity between 110 and 280°C. The addition of an appropriate amount of F ions eroded the surface morphology of the catalyst and reduced its
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