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Open AccessArticle

Novel Fe‐W‐Ce Mixed Oxide for the Selective Catalytic Reduction of NOx with NH3 at Low Temperatures

Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
Institute of Combustion and Power Plant Technology, University of Stuttgart, Stuttgart 70569, Germany
School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
Authors to whom correspondence should be addressed.
Catalysts 2017, 7(2), 71;
Received: 16 January 2017 / Accepted: 16 February 2017 / Published: 20 February 2017
(This article belongs to the Special Issue Heterogeneous Catalysis for Environmental Remediation)
PDF [3556 KB, uploaded 23 February 2017]


A set of novel iron doped cerium‐tungsten catalysts were prepared by sol‐gel method with a view to their application for low temperature selective catalytic reduction (SCR) of NOx with NH3 in power plants. With a molar ratio Fe/W/Ce of 0.5:1:1, a NOx reduction of >90% at 200 °C was achieved. In Fe-W-Ce catalysts with low iron oxide content, it was found that the iron compounds were highly dispersed and formed a solid solution within the cerium oxide lattice, which promoted the SCR activity. Large amounts of iron in the catalysts might form a layer of Fe2O3 on the catalyst surface, which induced the synergistic inhibition effect among Fe, Ce and W species. Moreover, the Fe‐W‐Ce catalysts possessed a high resistance to changed operation parameters as well as to deactivation by SO2 and/or H2O. The novel catalyst showed to be competitive among recently developed low‐temperature SCR catalysts. View Full-Text
Keywords: Fe-W-Ce; SCR; synergistic effect; high resistance; competitive Fe-W-Ce; SCR; synergistic effect; high resistance; competitive

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Stahl, A.; Wang, Z.; Schwämmle, T.; Ke, J.; Li, X. Novel Fe‐W‐Ce Mixed Oxide for the Selective Catalytic Reduction of NOx with NH3 at Low Temperatures. Catalysts 2017, 7, 71.

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