Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 53, Issue 33, Pages 12964-12970Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ie501887f
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Funding
- National Natural Science Foundation of China [21377010]
- Fundamental Research Funds for the Central Universities [YS1401]
- State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex [SCAPC201402]
- Program for New Century Excellent Talents of the Chinese Ministry of Education [NCET-13-0650]
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The effect of Mn on the catalytic performance of V2O5/TiO2 catalyst for the selective catalytic reduction of NOx by NH3 (NH3-SCR) has been investigated in this study. It was found that the added Mn significantly enhanced the activity of V2O5/TiO2 catalyst for NH3-SCR below 400 degrees C. The redox cycle (V4+ + Mn4+ <-> V5+ + Mn3+) over Mn-promoted V2O5/TiO2 catalyst plays a key role for the high catalytic deNO(x) performance. The redox cycle promotes the adsorption and activation of NH3 and NO, forming more reactive intermediates (NH4+, coordinated NH3, NO2, and monodentate nitrate species), thus promoting the NH3-SCR to proceed.
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