Catalysis Letters

, Volume 143, Issue 7, pp 697–704 | Cite as

Comparison on the Performance of α-Fe2O3 and γ-Fe2O3 for Selective Catalytic Reduction of Nitrogen Oxides with Ammonia

  • Caixia Liu
  • Shijian Yang
  • Lei Ma
  • Yue Peng
  • Arandiyan Hamidreza
  • Huazhen Chang
  • Junhua Li


γ-Fe2O3 catalyst showed higher catalytic activity than α-Fe2O3 in 150–300 °C. Both NH3 and NO x species adsorbed and reacted easily on γ-Fe2O3. However, NH3 adsorbed on α-Fe2O3 and then reacted with gaseous NO x . Gaseous NO x was more easily adsorbed on α-Fe2O3 than gaseous NH3, consequently, stable nitrates formed and blocked the active sites, which affected the SCR reaction badly.

Graphical Abstract


Selective catalytic reduction (SCR) NOx abatement γ-Fe2O3 α-Fe2O3 



This work was financially supported by National Natural Science Fund of China (Grant No. 51078203) and the National High-Tech Research and Development (863) Program of China (Grant No. 2010AA065001 and 2012AA062506).


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Caixia Liu
    • 1
  • Shijian Yang
    • 2
  • Lei Ma
    • 1
    • 3
  • Yue Peng
    • 1
  • Arandiyan Hamidreza
    • 1
  • Huazhen Chang
    • 1
  • Junhua Li
    • 1
  1. 1.State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC)School of Environment, Tsinghua UniversityBeijingChina
  2. 2.School of Environmental and Biological Engineering, Nanjing University of Science and TechnologyNanjingChina
  3. 3.Department of ChemistryTsinghua UniversityBeijingChina

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