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Issue 18, 2017
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TiO2 and Cu1.5Mn1.5O4 co-modified hierarchically porous zeolite Beta for soot oxidation with excellent sulfur-resistance and stability

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Abstract

TiO2 and spinel Cu1.5Mn1.5O4 co-modified hierarchically porous zeolite Beta (Ti/Cu1.5Mn1.5O4-HBeta) with 3D interpenetrating micro–mesoporosity has been synthesized, which showed highly efficient catalytic activity to the soot oxidation in the presence of O2/NO/N2 due to the rich moderate intensity acidic sites and chemisorbed oxygen species. In the presence of SO2/O2/NO/N2, the SO2 could be preferentially adsorbed on the Ti/Cu1.5Mn1.5O4-HBeta and the resulting sulfates could easily decompose at elevated temperatures, thus leading to significantly improved sulfur-resistance. Furthermore, the excellent water-resistance and cycling stability were achieved on the catalyst Ti/Cu1.5Mn1.5O4-HBeta owing to its crystalline zeolite framework and highly dispersed active components.

Graphical abstract: TiO2 and Cu1.5Mn1.5O4 co-modified hierarchically porous zeolite Beta for soot oxidation with excellent sulfur-resistance and stability

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Publication details

The article was received on 14 Mar 2017, accepted on 11 Apr 2017 and first published on 12 Apr 2017


Article type: Paper
DOI: 10.1039/C7DT00918F
Citation: Dalton Trans., 2017,46, 6111-6116
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    TiO2 and Cu1.5Mn1.5O4 co-modified hierarchically porous zeolite Beta for soot oxidation with excellent sulfur-resistance and stability

    X. X. Zhou, H. Zhao, W. M. Huang, H. R. Chen and J. L. Shi, Dalton Trans., 2017, 46, 6111
    DOI: 10.1039/C7DT00918F

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