期刊
CHEMICAL COMMUNICATIONS
卷 50, 期 62, 页码 8445-8463出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cc01098a
关键词
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资金
- National Natural Science Foundation of China [51221892, 51108446, 21177142, 51278486]
- Ministry of Science and Technology, China [2013AA065301, 2010CB732304]
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.
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