Reaction Mechanism of NH3-Selective Catalytic Reduction for NO on CrOx-CeO2 Binary Oxide

被引：4

作者：

Liu Hai-Di ^{[1
]}

Li Wei-Man ^{[1
]}

Yue Ren-Liang ^{[1
]}

Chen Yun-Fa ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China

来源：

CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2013年 / 29卷 / 11期

关键词：

Cr2O3; CeO2; SCR; NOx; In-situ DRIFT; AMORPHOUS CHROMIA CATALYSTS; DIFFUSE REFLECTANCE FTIR; LOW-TEMPERATURE SCR; NITRIC-OXIDE; SURFACE-STRUCTURE; MNOX-CEO2; CATALYST; SUPERIOR CATALYST; NH3; CRYSTALLINE; ADSORPTION;

D O I：

10.3969/j.issn.1001-4861.2013.00.316

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In-situ Diffuse Reflectance Infrared Fourier Transform (In-situ DRIFT) Spectroscopy was employed to investigate the reaction mechanism of NH3-Selective Catalytic Reduction (SCR) upon NO on CrOx-CeO2 binary oxide at 473 K. The surface adsorbed species on the CrOx-CeO2 binary oxide during the SCR reaction were analyzed. To elucidate the reaction process more precisely, we cut off the NH3 and NO flow, respectively, in the SCR reaction and collected the resulting in-situ DRIFT spectra. The results indicate that the SCR reaction process might follow the Eley-Rideal (E-R) mechanism.

引用

页码：2399 / 2404

页数：6

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