Selective catalytic reduction of NOx with NH3 over Sb modified CeZrOx catalyst

被引：12

作者：

Shi, Ronghui ^{[1
]}

Lin, Xiaoying ^{[1
]}

Zheng, Zhigong ^{[1
]}

Feng, Ren ^{[1
]}

Liu, Yamin ^{[1
]}

Ni, Liufang ^{[1
]}

Yuan, Binhan ^{[1
]}

机构：

[1] Fujian Univ Technol, Coll Ecol Environm & Urban Construct, Fuzhou 350118, Fujian, Peoples R China

来源：

REACTION KINETICS MECHANISMS AND CATALYSIS | 2018年 / 124卷 / 01期

关键词：

NH3-SCR; Sb modified; NOx; CeZrOx; MIXED OXIDES; SCR; MN; PERFORMANCE; NH3-SCR; SPINEL; MECHANISM; SO2;

D O I：

10.1007/s11144-017-1314-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of novel Sb modified CeZrOx catalysts were prepared by a homogeneous precipitation method and used for the selective catalytic reduction NOx by NH3 (NH3-SCR). The CeSbZrOx catalyst exhibited high SCR activity and SO2/H2O resistance. The characterization results showed that the addition of Sb into the CeZrOx catalyst inhibited the growth of CeO2 crystallite size, enlarged the surface area and pore volume, increased the acidity and enhanced the redox ability, intensified the NH3 and NOx adsorption capability and improved Ce3+/Ce4+ molar ratio on the catalyst surface, all of which were responsible for achieving the high NH3-SCR activity.

引用

页码：217 / 227

页数：11

共 26 条

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