Mo doping as an effective strategy to boost low temperature NH3-SCR performance of CeO2/TiO2 catalysts

被引：47

作者：

Li, Lulu ^{[1
]}

Tan, Wei ^{[2
]}

Wei, Xiaoqian ^{[2
]}

Fan, Zhongxuan ^{[2
]}

Liu, Annai ^{[2
]}

Guo, Kai ^{[2
]}

Ma, Kaili ^{[2
]}

Yu, Shuohan ^{[2
]}

Ge, Chengyan ^{[4
]}

Tang, Changjin ^{[2
]}

Dong, Lin ^{[1
,3
]}

机构：

[1] Nanjing Univ, Sch Environm, Nanjing 210093, Jiangsu, Peoples R China

[2] Nanjing Univ, Sch Chem & Chem Engn, Nanjing 210093, Jiangsu, Peoples R China

[3] Nanjing Univ, Ctr Modern Anal, Jiangsu Key Lab Vehicle Emiss Control, Nanjing 210093, Jiangsu, Peoples R China

[4] YanCheng Inst Technol, Sch Chem & Chem Engn, Yancheng 224051, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2018年 / 114卷

基金：

中国国家自然科学基金;

关键词：

CeO2/TiO2; Mo doping; Low-temperature SCR activity; SO2; resistance; OXYGEN REDUCTION REACTION; SO2; SCR;

D O I：

10.1016/j.catcom.2018.05.015

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 novel CeO2/TiO2-MoO3 (Ce/TM) catalyst was synthesized by using of Mo as a bulk dopant to boost the NH3-SCR performance of CeO2/TiO2 catalyst. It displayed 100% NO conversion at 200-350 degrees C under 60,000 mlg(-1)h(-1) and high tolerance to H2O and SO2 at 250 degrees C. Characterization results manifested that the doping of Mo not only resulted in more Bronsted acid and Lewis acid sites formed on the Ce/TM surface, but also increased the specific surface area and redox ability of the catalyst, all of which account for the enhanced NH3-SCR activity.

引用

页码：10 / 14

页数：5

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