Cerium modified MnTiOx/attapulgite catalyst for low-temperature selective catalytic reduction of NOx with NH3

Huang Xiaoyan; Xie Aijuan; Wu JiayiXu LinjingLuo ShipingXia JianwenYao ChaoLi Xiazhang

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Cerium modified MnTiOx/attapulgite catalyst for low-temperature selective catalytic reduction of NOx with NH3

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Novel cerium-loaded MnTiOx/attapulgite (Ce/MnTiOx/ATP) and cerium-doped MnTiOx/attapulgite (Ce-MnTiOx/ATP) catalysts for low-temperature selective catalytic reduction of nitrogen oxides (NOx) with ammonia (NH3-SCR) were synthesized by co-precipitation methods. The results of catalytic activity testing for the as-prepared Ce-MnTiOx/ATP and Ce/MnTiOx/ATP indicated that the Ce-MnTiOx/ATP catalyst exhibited better catalytic performance with over 80 NOx conversion within a wide temperature window between 170 and 350 degrees, and the highest NOx conversion attained for the Ce-MnTiOx/ATP catalyst was 97.5. A series of characterization illustrated that the Ce-MnTiOx/ATP catalyst exhibited a higher specific surface area, oxygen vacancy, redox ability, and acid site as compared to that of the Ce/MnTiOx/ATP catalyst. The performance tests showed that the Ce-MnTiOx/ATP catalyst exhibited not only better SO2 H2O resistance but also higher N-2 selectivity and good stability. Therefore, the Ce-MnTiOx/ATP catalyst was testified to be a promising catalyst for NH3-SCR.

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来源
《Journal of Materials Research》 |2018年第21期|3559-3569|共11页
作者
Huang Xiaoyan; Xie Aijuan; Wu JiayiXu LinjingLuo ShipingXia JianwenYao ChaoLi Xiazhang;
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作者单位

Changzhou Univ, Sch Petrochem Engn, Changzhou 213164, Peoples R China;

Changzhou Univ, Jiangsu Huayuan Min Co Ltd, Changzhou 213164, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种英语
中图分类工程材料学;
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Cerium modified MnTiOx/attapulgite catalyst for low-temperature selective catalytic reduction of NOx with NH3

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