화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.36, 334-345, April, 2016
DOI10.1016/j.jiec.2016.02.024  Export Citation
Effectively promote catalytic performance by adjusting W/Fe molar ratio of FeWx/Ce0.68Zr0.32O2 monolithic catalyst for NH3-SCR
Haidi Xu1, 2, †, Yuanshan Li3, Baoqiang Xu4, Yi Cao4, Xi Feng3, Mengmeng Sun1, 5, Maochu Gong4, and Yaoqiang Chen1, 2, †
  • 1Institution of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610064, PR China
  • 2Sichuan Provincial Environmental Protection Environmental Catalytic Materials Engineering Technology Center, Chengdu 610064, PR China
  • 3College of Chemical Engineering, Sichuan University, Chengdu 610064, PR China
  • 4College of Chemistry, Sichuan University, Chengdu 610064, PR China
  • 5, China
E-mail:,
FeWx/Ce0.68Zr0.32O2 (x = 0, 0.35, 0.7, 1.03, 1.38) catalysts with different molar ratios (x) of W/Fe were prepared for NH3-SCR. The experimental results showed that catalytic performances of catalysts were obviously improved by adjusting the molar ratio of W/Fe. FeW1.03/Ce0.68Zr0.32O2 catalyst with W/Fe of 1.03 displayed the best catalytic performance, it could obtain higher than 95% NOx conversion and nearly 100% N2 selectivity in the temperature range of 250-435 °C. The characterization results indicated that more active species of Fe3+, chemical adsorbed oxygen species and surface acid sites would together contribute to the excellent NH3-SCR performance of FeW1.03/Ce0.68Zr0.32O2 catalyst.
Keywords:Molar ratio;Tungsten;Iron;Selective catalytic reduction;Nitrogen oxides
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