| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5360964 | Applied Surface Science | 2014 | 6 Pages |
Abstract
Mn/TiO2 catalyst is of high activity for low temperature selective catalytic reduction (SCR) of NO with NH3. And the deposition of alkali metal would lead to the deactivation of Mn/TiO2 catalyst. In this paper, the poisoning effect of Na and K on Mn/TiO2 was investigated based on experimental and theoretical study. It was found that K had a stronger poisoning effect than that of Na. The bad performance of K-Mn/TiO2 may be due to its small surface area, high crystallinity, weak surface acidity, low content of Mn4+ and chemisorbed oxygen, and bad redox ability. The interpretation of the experimental results is supported by DFT calculations.
Related Topics
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Physical and Theoretical Chemistry
Authors
Rui-tang Guo, Qing-shan Wang, Wei-guo Pan, Wen-long Zhen, Qi-lin Chen, Hong-lei Ding, Ning-zhi Yang, Chen-zi Lu,