Journal
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volume 142, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2020.109472
Keywords
SCR; FeCeOx; CeO2; Fe doping; Promotional effect
Funding
- NSFC [21777030]
- National Engineering Lab for Mobile Source Emission Control Technology [NELMS2018B02]
- Natural Science Foundation of Zhejiang Province [Y5090310, LY19E080023]
- Natural Science Foundation of Anhui Pprovince [KJ2018A0406, GXFX2017106]
- State Key Laboratory of Precision Spectroscopy (East China Normal University) [2015xkjq008]
- National Innovation and Entrepreneurship Training Program for College Students [201810375009, 2018272]
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An FeCeOx solid solution with an Fe/Ce molar ratio of 1 was obtained via a modified sol-gel method. The promotional effect of Fe3+ ions in the lattice of cubic CeO2 for catalytic reduction of NO with NH3 was studied. The NO conversion over the FeCeOx catalyst was obviously higher than those over CeO2 and Fe2O3 catalysts. FeCeOx was characterized by using XRD, TEM, and XANES, etc. The experimental results revealed that Fe substituted Ce in CeO2 to form an Fe-O-Ce solid solution with high activity for catalytic reduction of NO. The atomic and electric structures of the FeCeOx catalyst were studied to explain the enhanced catalytic activity.
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