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Advances in Nano-Catalyst and Single-Atom Catalyst

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Applied Chemistry".

Deadline for manuscript submissions: closed (28 February 2025) | Viewed by 970

Special Issue Editor


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Guest Editor
Department of Environmental Science and Engineering, Fudan University, Shanghai, China
Interests: SCR; VOCs oxidation; single-atom catalysts; zeolite; environmental catalysis

Special Issue Information

Dear Colleagues,

Heterogeneous catalysis plays a crucial role in many industrial processes (e.g., chemical, fuel, and material production) due to its high efficiency and low cost. In recent years, the development of novel catalysts, including nano- and single-atom catalysts, has facilitated the optimization of industrial catalytic processes. These catalysts offer higher activity and selectivity with less metal usage than traditional catalysts due to their high atom efficiency and unique electronic and geometric properties.

This Special Issue aims to explore the latest developments in nano-catalysts and single-atom catalysts, as well as their applications in industrial catalytic processes. We hope this Special Issue will provide insights into the latest advances in heterogeneous catalysis and inspire new ideas for developing more efficient and sustainable catalytic systems for industrial processes.

Dr. Yaxin Chen
Guest Editor

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Keywords

  • heterogeneous catalysis
  • nano-catalysts
  • single-atom catalysts
  • thermal catalysis
  • photocatalysis
  • electrocatalysis

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Published Papers (1 paper)

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Research

15 pages, 3696 KiB  
Article
Impact of Alkali Metals on CeO2-WO3/TiO2 Catalysts for NH3-Selective Catalytic Reduction and Lifetime Prediction of Catalysts
by Mutao Xu, Yuhang Deng, Xingxiu Gao, Qijie Jin, Wei Yan, Liguo Chen, Jian Yang, Jing Song, Changcheng Zhou and Haitao Xu
Molecules 2024, 29(23), 5570; https://doi.org/10.3390/molecules29235570 - 25 Nov 2024
Cited by 2 | Viewed by 728
Abstract
Ce-based catalysts have been widely used in the removal of nitrogen oxides from industrial flue gas because of their good catalytic performance and environmental friendliness. However, the mechanism of alkali metal poisoning in Ce-based catalysts remains to be further studied. This work involves [...] Read more.
Ce-based catalysts have been widely used in the removal of nitrogen oxides from industrial flue gas because of their good catalytic performance and environmental friendliness. However, the mechanism of alkali metal poisoning in Ce-based catalysts remains to be further studied. This work involves the preparation of the K/Na-poisoned CeWTi catalyst via the impregnation method for assessing its performance in NO removal. Experiments show that both K and Na exhibit detrimental effects on the CeWTi catalyst, and the loading of alkali metal reduces the specific surface area and pore volume of the catalyst. Furthermore, the presence of alkaline metals results in a notable decline in the CeWTi acid concentration, particularly in Lewis acid sites. Concurrently, the levels of Ce3+, oxygen vacancies, and reducing agents on the catalyst surface decrease, leading to diminished reduction capability and eventual catalyst deactivation. The application of a BP neural network for catalyst activity prediction yielded an average relative error of approximately 0.73%, indicating enhanced accuracy in prediction outcomes. This work explored the cause of alkali metal poisoning of the CeWTi catalyst and provided an effective prediction method for the lifetime of CeWTi catalyst, which provided theoretical guidance for the engineering application of Ce-based catalysts. Full article
(This article belongs to the Special Issue Advances in Nano-Catalyst and Single-Atom Catalyst)
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