Octahedral Molecular Sieves (OMS) of Copper-Manganese Oxides for Low-Temperature Selective Catalytic Reduction of NO with CH4

Bin Zheng Fang; Chen Liang Zhou; Jian Wei Cao; Na Zhang; Jia Li Han; Hui Li; Xi Dong Wang

doi:10.4028/www.scientific.net/AMM.675-677.543

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 675-677Octahedral Molecular Sieves (OMS) of...

Octahedral Molecular Sieves (OMS) of Copper-Manganese Oxides for Low-Temperature Selective Catalytic Reduction of NO with CH₄

Abstract:

Cu-OMS catalyst reveals well catalytic performance on the oxidation-reduction reactions of gasoline engine exhaust. The catalysts were characterized by means of XRD, nitrogen physisorption and oxidation-reduction reactions. The results of the catalytic tests revealed that CO conversion can get 95% at as low as 150°C and achieve 100% at 200°C through 2CO+O₂→2CO reaction, while CH₄ and NO conversion can achieve 87% and 90% at 300°C respectively. The Cu-ML corresponds to a type IVisothermal, and Cu-OMS corresponds to a type II isothermal. High Cu dispersion in manganese oxide crystals and low agglomeration are the main reason for high activity.

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Periodical:

Applied Mechanics and Materials (Volumes 675-677)

Pages:

543-546

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.675-677.543

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Online since:

October 2014

Authors:

Bin Zheng Fang*, Chen Liang Zhou, Jian Wei Cao, Na Zhang, Jia Li Han, Hui Li, Xi Dong Wang

Keywords:

Cu-ML, Cu-OMS, Gasoline Engine Exhaust, Oxidation-Reduction Reactions

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References

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