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Quantum chemical calculation was carried out to choose a promoter which can reduce the poisoning of V 2 O 5 /TiO 2 catalysts by SO 2 . Several atoms were chosen as candidates and new catalysts were synthesized by impregnation method. The NO x conversion rate was measured at temperatures between 100 and 400 °C and poisoning effect was investigated. The most promising...
V 2 O 5 -WO 3 /TiO 2 catalysts were prepared by impregnation method and in situ electrical conductivity measurements were carried out to investigate the reaction mechanism for ammonia SCR (selective catalytic reduction) of NO x . The electrical conductivity change with ammonia supply and the increase of electrical conductivity were mainly caused by reduction...
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