Development of highly active three-dimensional cross-linked structural manganese-titanium composite oxides for NOx abatement: Insight into the resistance to sulfur and alkali metal poisoning mechanism

Zhu, Yujie; Wang, Jitong; Ma, Cheng; Zhang, Yongzheng; Qiao, Wenming; Ling, Licheng

doi:10.1016/j.cej.2023.145573

Chemical Engineering Journal

2023

DOI: 10.1016/j.cej.2023.145573

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Development of highly active three-dimensional cross-linked structural manganese-titanium composite oxides for NOx abatement: Insight into the resistance to sulfur and alkali metal poisoning mechanism

Yujie Zhu,

Jitong Wang,

Cheng Ma

et al.

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2024

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Cited by 3 publications

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Redox ability dependent SO2 tolerance for low-temperature NH3-SCR of MnO2@MeOX (Me = Ti, Ce, Cu) catalysts

Li,

Sun,

Wey

2024

Chemical Engineering Journal

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Redox ability dependent SO2 tolerance for low-temperature NH3-SCR of MnO2@MeOX (Me = Ti, Ce, Cu) catalysts

Li,

Sun,

Wey

2024

Chemical Engineering Journal

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Modulating charge transfer and constructing synergistic bimetallic active sites for CO-SCR reactions in inverse spinel

Li,

Han,

Tao

et al. 2024

Journal of Environmental Chemical Engineering

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Recent Progress on Low-Temperature Selective Catalytic Reduction of NOx with Ammonia

Park

2024

Molecules

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Selective catalytic reduction of nitrogen oxides (NOx) with ammonia (NH3-SCR) has been implemented in response to the regulation of NOx emissions from stationary and mobile sources above 300 °C. However, the development of NH3-SCR catalysts active at low temperatures below 200 °C is still needed to improve the energy efficiency and to cope with various fuels. In this review article, recent reports on low-temperature NH3-SCR catalysts are systematically summarized. The redox property as well as the surface acidity are two main factors that affect the catalytic activity. The strong redox property is beneficial for the low-temperature NH3-SCR activity but is responsible for N2O formation. The multiple electron transfer system is more plausible for controlling redox properties. H2O and SOx, which are often found with NOx in flue gas, have a detrimental effect on NH3-SCR activity, especially at low temperatures. The competitive adsorption of H2O can be minimized by enhancing the hydrophobic property of the catalyst. Various strategies to improve the resistance to SOx poisoning are also discussed.

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Development of highly active three-dimensional cross-linked structural manganese-titanium composite oxides for NOx abatement: Insight into the resistance to sulfur and alkali metal poisoning mechanism

Cited by 3 publications

References 57 publications

Redox ability dependent SO2 tolerance for low-temperature NH3-SCR of MnO2@MeOX (Me = Ti, Ce, Cu) catalysts

Redox ability dependent SO2 tolerance for low-temperature NH3-SCR of MnO2@MeOX (Me = Ti, Ce, Cu) catalysts

Modulating charge transfer and constructing synergistic bimetallic active sites for CO-SCR reactions in inverse spinel

Recent Progress on Low-Temperature Selective Catalytic Reduction of NOx with Ammonia

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