Three-dimensional ordered macroporous LaFe1−xMnxO3 with high stability for efficient NO oxidation and sulfur resistance

NOx is an air pollutant that affects human health. A series of perovskite catalysts with different ratios of lanthanum, iron, and manganese and a three-dimensional ordered microporous structure was prepared, and the strongest catalytic performance was obtained with the LaFe0.1Mn0.9O3 catalyst. LaFe0...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2024-05, Vol.60 (39), p.5157-5160
Main Authors: Zuo, Shengjie, Wang, Ping, He, Miao, Yao, Jiasai, Li, Haocheng, Xiong, Jing, Sun, Xiaohua, Yuechang Wei, Li, Zhenxing
Format: Article
Language:English
Subjects:
Catalysts
Lanthanum
Manganese
Oxidation resistance
Perovskites
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Summary:NOx is an air pollutant that affects human health. A series of perovskite catalysts with different ratios of lanthanum, iron, and manganese and a three-dimensional ordered microporous structure was prepared, and the strongest catalytic performance was obtained with the LaFe0.1Mn0.9O3 catalyst. LaFe0.1Mn0.9O3 possesses the greatest number of oxygen vacancies and reached 77% NO oxidation conversion at 250 °C, with the highest NO oxidation conversion of 99% at 318 °C. This work provides a promising non-precious metal catalyst for NO oxidation and soot combustion.
ISSN:1359-7345
1364-548X
DOI:10.1039/d4cc01275e