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Papers |
First Author: |
ZHU Na |
Abstract: |
A series of Fe-V-Ti oxide catalysts were prepared by a co-precipitation method, among which the Fe0.1V0.1TiOx catalyst showed the optimal NH3-SCR performance and excellent SO2 resistance. Fe0.1V0.1TiOx achieved > 90% NOx conversion at 225–450 °C under a GHSV of 200,000 h-1. When introducing SO2 and H2O to the SCR reaction for 24 h, the NOx conversion maintained a level above 93% at 250 °C. The Raman and Mossbauer spectra showed that FeVO4 and Fe2O3 coexisted on the surface of TiO2. In Fe-V-Ti catalysts, the charge interaction between Fe2O3 and FeVO4 as well as the electronic inductive effect between Fe and V species resulted in the improvement of SCR activity and N2 selectivity at high temperatures. The NH3-SCR process on the Fe0.1V0.1TiOx catalyst mainly followed the Eley-Rideal (E–R) reaction mechanism with gaseous NO reacting with adsorbed NH3 adsorbed species.
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Contact the author: |
SHAN Wenpo |
Page Number: |
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Issue: |
120970 |
Subject: |
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Impact Factor: |
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Authors units: |
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PubYear: |
JAN 15 2020 |
Volume: |
382 |
Publication Name: |
JOURNAL OF HAZARDOUS MATERIALS |
The full text link: |
https://doi.org/10.1016/j.jhazmat.2019.120970 |
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