Selective catalytic reduction of NO with NH3 over manganese substituted iron titanate catalyst: Reaction mechanism and H2O/SO2 inhibition mechanism study
文献类型：期刊论文
| 作者 | Liu, Fudong; He, Hong |
| 刊名 | CATALYSIS TODAY
 |
| 出版日期 | 2010-08-01 |
| 卷号 | 153期号:3页码:70-76 |
| 关键词 | Selective catalytic reduction Iron titanate catalyst Mn substitution SCR mechanism Ammonium nitrate H2O/SO2 inhibition effect |
| 中文摘要 | Selective catalytic reduction (SCR) of NO with NH3 over Mn substituted iron titanate catalyst (Fe-0 75 Mn0 25TiOx) was fully investigated using in situ diffuse reflectance infrared Fourier transform spectroscopy. At relatively low temperatures, both ionic NH4+ and coordinated NH3 contributed to the SCR reaction, and both bridging nitrate and monoclentate nitrate were confirmed to be the reactive nitrate species In the SCR reaction condition. surface NH4NO3 species was formed as intermediate species and its reactivity was also proved. An NH3-SCR mechanism over Fe0 75Mn0 25TiOx at low temperatures was proposed accordingly, in which the reduction of NH4NO3 by NO was possibly the rate-determining step. Due to the mild and reversible inhibition effect of H2O on NH3/NOx adsorption, the SCR activity decline in the presence of H2O was also slight and recoverable, however, the inhibition effect of SO2 was much more intense and irreversible, because the formation of nitrate species was totally inhibited by the formation of sulfate, resulting in the cut-off of the SCR reaction pathway at low temperatures (C) 2010 Elsevier B V All rights reserved |
| WOS记录号 | WOS:000280534300002 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21138]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Fudong,He, Hong. Selective catalytic reduction of NO with NH3 over manganese substituted iron titanate catalyst: Reaction mechanism and H2O/SO2 inhibition mechanism study[J]. CATALYSIS TODAY,2010,153(3):70-76. |
| APA | Liu, Fudong,&He, Hong.(2010).Selective catalytic reduction of NO with NH3 over manganese substituted iron titanate catalyst: Reaction mechanism and H2O/SO2 inhibition mechanism study.CATALYSIS TODAY,153(3),70-76. |
| MLA | Liu, Fudong,et al."Selective catalytic reduction of NO with NH3 over manganese substituted iron titanate catalyst: Reaction mechanism and H2O/SO2 inhibition mechanism study".CATALYSIS TODAY 153.3(2010):70-76. |
入库方式： OAI收割
来源：生态环境研究中心
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