Effect of W on the acidity and redox performance of the Cu0.02Fe0.2W TiOx (a = 0.01, 0.02, 0.03) catalysts for NH3-SCR of NO

Shibo Ma,Xiaoyu Zhao,Yushi Li,Tianrui Zhang,Fulong Yuan,Xiaoyu Niu,Yujun Zhu

Applied Catalysis B: Environmental（2019）

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摘要

•Cu0.02Fe0.2W0.02TiOx exhibits >90% NO conversion in range of 235–520 °C with H2O.•Modify the redox and surface acidity for Cu0.02Fe0.2WaTiOx by W addition.•Improved water/sulfur resistance due to the introduction of tungsten.•Synergistic effect between redox and acidity play key role in the NH3-SCR of NOx.

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关键词

NH3-SCR,Cu0.02Fe0.2WaTiOx,Tungsten modification,Combined effect,In-situ DRIFTS

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