Significant Promotion Effect of Mo Additive on a Novel Ce-Zr Mixed Oxide Catalyst for the Selective Catalytic Reduction of NOx with NH3

被引：224

作者：

Ding, Shipeng ^{[1
]}

Liu, Fudong ^{[1
]}

Shi, Xiaoyan ^{[1
]}

Liu, Kuo ^{[1
]}

Lian, Zhihua ^{[1
]}

Xie, Lijuan ^{[1
]}

He, Hong ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Joint Lab Environm Simulat & Pollut Con, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2015年 / 7卷 / 18期

基金：

中国国家自然科学基金;

关键词：

selective catalytic reduction; nitrogen oxides; diesel engine exhaust; thermal stability; Ce-Zr mixed oxide; SOLID-SOLUTIONS; SULFATED ZIRCONIA; NH3-SCR ACTIVITY; AMMONIA; SCR; CERIA; MECHANISM; PERFORMANCE; ADSORPTION; CEO2-TIO2;

D O I：

10.1021/acsami.5b00636

中图分类号：

TB3 [工程材料学];

学科分类号：

082905 [生物质能源与材料];

摘要：

A novel Mo-promoted Ce-Zr mixed oxide catalyst prepared by a homogeneous precipitation method was used for the selective catalytic reduction (SCR) of NOx with NH3. The optimal catalyst showed high NH3-SCR activity, SO2/H2O durability, and thermal stability under test conditions. The addition of Mo inhibited growth of the CeO2 particle size, improved the redox ability, and increased the amount of surface acidity, especially the Lewis acidity, all of which were favorable for the excellent NH3-SCR performance. It is believed that the catalyst is promising for the removal of NOx from diesel engine exhaust.

引用

收藏

页码：9497 / 9506

页数：10

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