New method for the preparation of hierarchical nanotube K0.3xMnxCe1-xOδ catalysts and their excellent catalytic performance for soot combustion

Zhang, Chunlei; Gao, Siyu; Zhou, Shengran; Yu, Di; Wang, Lanyi; Fan, Xiaoqiang; Yu, Xuehua; Liu, Bing; Zhao, Zhen

doi:10.1016/j.apcatb.2024.124169

Applied Catalysis B: Environment and Energy

2024

DOI: 10.1016/j.apcatb.2024.124169

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New method for the preparation of hierarchical nanotube K0.3xMnxCe1-xOδ catalysts and their excellent catalytic performance for soot combustion

Chunlei Zhang,

Siyu Gao,

Shengran Zhou

et al.

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Cited by 3 publications

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Facile preparation of alkali metal‐modified hollow nanotubular manganese‐based oxide catalysts and their excellent catalytic soot combustion performance

Zhang,

Gao,

Chen

et al. 2024

Smart Molecules

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The soot emitted during the operation of diesel engine exhaust seriously threatens the human health and environment, so treating diesel engine exhaust is critical. At present, the most effective method for eliminating soot particles is post‐treatment technology. Preparation of economically viable and highly active soot combustion catalysts is a pivotal element of post‐treatment technology. In this study, different single‐metal oxide catalysts with fibrous structures and alkali metal‐modified hollow nanotubular Mn‐based oxide catalysts were synthesized using centrifugal spinning method. Activity evaluation results showed that the manganese oxide catalyst has the best catalytic activity among the prepared single‐metal oxide catalysts. Further research on alkali metal modification showed that doping alkali metals is beneficial for improving the oxidation state of manganese and generating a large number of reactive oxygen species. Combined with the structural effect brought by the hollow nanotube structure, the alkali metal‐modified Mn‐based oxide catalysts exhibit superior catalytic performance. Among them, the Cs‐modified Mn‐based oxide catalyst exhibits the best catalytic performance because of its rich active oxygen species, excellent NO oxidation ability, abundant Mn4+ ions (Mn4+/Mnn+ = 64.78%), and good redox ability. The T10, T50, T90, and CO2 selectivity of the Cs‐modified Mn‐based oxide catalyst were 267°C, 324°C, 360°C, and 97.8%, respectively.

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Facile preparation of alkali metal‐modified hollow nanotubular manganese‐based oxide catalysts and their excellent catalytic soot combustion performance

Zhang,

Gao,

Chen

et al. 2024

Smart Molecules

View full text Add to dashboard Cite

show abstract

Investigation of sodium–manganese oxides with various crystal phases for the efficient catalytic removal of diesel soot particles

Yu,

Ren,

Zhang

et al. 2024

Applied Catalysis B: Environment and Energy

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Co3O4-modified 3DOM LaFe0.6Mg0.4O3 perovskite as robust catalysts for soot oxidation

Feng,

Zhang,

Ren

et al. 2024

Surfaces and Interfaces

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New method for the preparation of hierarchical nanotube K0.3xMnxCe1-xOδ catalysts and their excellent catalytic performance for soot combustion

Cited by 3 publications

References 86 publications

Facile preparation of alkali metal‐modified hollow nanotubular manganese‐based oxide catalysts and their excellent catalytic soot combustion performance

Facile preparation of alkali metal‐modified hollow nanotubular manganese‐based oxide catalysts and their excellent catalytic soot combustion performance

Investigation of sodium–manganese oxides with various crystal phases for the efficient catalytic removal of diesel soot particles

Co3O4-modified 3DOM LaFe0.6Mg0.4O3 perovskite as robust catalysts for soot oxidation

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