Ceria modified MnOx/TiO2 as a superior catalyst for NO reduction with NH3 at low-temperature |
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| Authors: | Zhongbiao Wu Ruiben Jin Yue Liu Haiqiang Wang |
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| Affiliation: | aDepartment of Environmental Engineering, Zhejiang University, Zheda Road 38, Hangzhou, Zhejiang 310027, China |
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| Abstract: | A series of cerium modified MnOx/TiO2 catalysts were prepared by sol–gel method and used for low-temperature selective catalytic reduction (SCR) of NOx with ammonia. The experimental results showed that NO conversion could be improved by doping Ce from 39% to 84% at 80 °C with a gas hourly space velocity (GHSV) of 40,000 h−1. This activity improvement may be contributed to the increase of chemisorbed oxygen and acidity after Ce doping. TPR results also verified that the redox property of Ce modified MnOx/TiO2 was enhanced at low-temperature. |
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| Keywords: | Selective catalytic reduction Ce modified MnOx/TiO2 Low-temperature Sol– gel |
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