Citation: LIU Hai-Di, LI Wei-Man, YUE Ren-Liang, CHEN Yun-Fa. Reaction Mechanism of NH₃-Selective Catalytic Reduction for NO on CrO_x-CeO₂ Binary Oxide[J]. Chinese Journal of Inorganic Chemistry, ;2013, 29(11): 2399-2404. doi: 10.3969/j.issn.1001-4861.2013.00.316 shu

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

1.
State Key Laboratory of Multi-Phase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

Received Date: 26 March 2013
Available Online: 27 May 2013
Fund Project: 中国科学院知识创新工程重要方向项目(No.KZCX2-EW-403) (No.KZCX2-EW-403)国家自然科学基金(No.21107111)资助项目。 (No.21107111)

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 NOon CrO_x-CeO₂ binary oxide at 473 K. The surface adsorbed species on the CrO_x-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.
- Cr₂O₃;CeO₂;SCR;NO_x;In-situ DRIFT
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沈阳化工大学材料科学与工程学院沈阳 110142

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

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通讯作者: 陈斌, bchen63@163.com

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