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Low temperature NH3-SCR reaction over MnOx supported on protonated titanate

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Abstract

In the present work, protonated titanate nanoribbons were prepared by hydrothermal treating of TiO2 in alkali solution, followed by a thorough acid washing. The protonated titanate nanoribbons were employed as novel support for MnOx species and MnOx/protonated titanate was studied as a promising catalyst for the low temperature NH3-SCR reaction. The maximal NO conversion of ca. 98% was achieved over MnOx/protonated titanate at 200 °C under high GHSV of 50000 h−1. The existence of both MnO2 and Mn2O3 as active Mn species on protonated titanate was confirmed by XPS analysis, which was responsible for the high deNOx activity of MnOx/protonated titanate in NH3-SCR reaction.

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Acknowledgement

This work was financially supported by the National Natural Science Fund of China (50876074).

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  1. State Key Laboratory of Engines, Tian** University, Tian**, 300072, People’s Republic of China

    Tianyou Wang, Kai Sun, Zhen Lu & Yajun Zhang

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  1. Tianyou Wang
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  2. Kai Sun
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  3. Zhen Lu
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Correspondence to Tianyou Wang.

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Wang, T., Sun, K., Lu, Z. et al. Low temperature NH3-SCR reaction over MnOx supported on protonated titanate. Reac Kinet Mech Cat 101, 153–161 (2010). https://doi.org/10.1007/s11144-010-0209-8

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  • DOI: https://doi.org/10.1007/s11144-010-0209-8

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