BiMnO3 Perovskite Catalyst for Selective Catalytic Reduction of NO with NH3 at Low Temperature

被引：17
|
作者：
Zhang Yibo [1 ,2 ]
Wang Deqiang [1 ]
Wang Jing [1 ]
Chen Qufei [1 ]
Zhang Zhendong [1 ]
Pan Xiqiang [1 ]
Miao Zhenzhen [1 ]
Zhang Bin [1 ]
Wu Zhijian [1 ]
Yang Xiangguang [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Jilin, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2012年 / 33卷 / 09期
基金：
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词：
perovskite; bismuth manganite; acidity; selective catalytic reduction; low temperature; P-O CATALYST; OXIDE CATALYSTS; DIESEL EXHAUST; NITRIC-OXIDE; MECHANISM; AMMONIA; ELECTRONEGATIVITY; PERFORMANCE; OXIDATION; ZEOLITES;
D O I：
10.1016/S1872-2067(11)60439-7
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A perovskite was used for selective catalytic reduction of NO with NH3 (NH3-SCR) at low temperature in the presence of excess oxygen. The BiMnO3 perovskite catalyst showed high activity in NH3-SCR at 100-240 degrees C. Experiment and DFT calculation showed that more Lewis acid sites and a high concentration of surface oxygen on BiMnO3 as compared with LaMnO3 were responsible for its better performance. In addition, BiMnO3 was also resistant to water vapor and a mixture of H2O and SO2.
引用
收藏
页码：1448 / 1454
页数：7
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