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Issue 62, 2014
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Environmentally-benign catalysts for the selective catalytic reduction of NOx from diesel engines: structure–activity relationship and reaction mechanism aspects

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Abstract

Selective catalytic reduction of NOx using NH3 or hydrocarbons (NH3-SCR or HC-SCR) in oxygen-rich exhaust from diesel engines remains a major challenge in environmental catalysis. The development of highly efficient, stable and environmentally-benign catalysts for SCR processes is very important for practical use. In this feature article, the structure–activity relationship of vanadium-free catalysts in the NH3-SCR reaction is discussed in detail, including Fe-, Ce-based oxide catalysts and Fe-, Cu-based zeolite catalysts, which is beneficial for catalyst redesign and activity improvement. Based on our research, a comprehensive mechanism contributing to the performance of Ag/Al2O3 in HC-SCR is provided, giving a clue to the design of a catalytic system with high efficiency.

Graphical abstract: Environmentally-benign catalysts for the selective catalytic reduction of NOx from diesel engines: structure–activity relationship and reaction mechanism aspects

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Publication details

The article was received on 11 Feb 2014, accepted on 04 Apr 2014 and first published on 04 Apr 2014


Article type: Feature Article
DOI: 10.1039/C4CC01098A
Author version available: Download Author version (PDF)
Citation: Chem. Commun., 2014,50, 8445-8463
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    Environmentally-benign catalysts for the selective catalytic reduction of NOx from diesel engines: structure–activity relationship and reaction mechanism aspects

    F. Liu, Y. Yu and H. He, Chem. Commun., 2014, 50, 8445
    DOI: 10.1039/C4CC01098A

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