Studies on the Preparation and DeNOx Performance of MnxOy/CNTs Catalyst for Low-Temperature Selective Catalytic Reduction

Bing Nan Ren; Qiao Wen Yang

doi:10.4028/www.scientific.net/AMR.798-799.231

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 798-799Studies on the Preparation and DeNOx Performance...

Studies on the Preparation and DeNOx Performance of Mn_xO_y/CNTs Catalyst for Low-Temperature Selective Catalytic Reduction

Abstract:

The metal oxide catalyst was prepared by loading Mn_xO_y on carbon nanotubes (CNTs) with impregnation method. Then the catalyst was characterized by BET, TEM and XPS, and the catalytic activity of the catalyst for selective catalytic reduction (SCR) of NO at low-temperature was investigated. The results showed that the species of active components loaded on the catalyst were MnO₂ and Mn₂O₃. The NO conversion was improved with reduction temperature increase under 250°C, increased slowly over 250°C. The O₂ content had an outstanding effect on NO conversion of catalysts at a low concentration range. Once the oxygen content was enhanced over 5%, there was no significant increase in the NO conversion. With the increasing of space velocity, the NO conversion rate was decreased under the reaction conditions.

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Periodical:

Advanced Materials Research (Volumes 798-799)

Pages:

231-234

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.798-799.231

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Online since:

September 2013

Authors:

Bing Nan Ren, Qiao Wen Yang

Keywords:

Carbon Nanotube (CN), Catalyst, Low-Temperature Selective Catalytic Reduction

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