Ultrathin MnO2 with strong lattice disorder for catalytic oxidation of volatile organic compounds
Copyright © 2023 Elsevier Inc. All rights reserved..
Catalytic oxidation proves the most promising technology for volatile organic compounds (VOCs) abatement. Lattice disorder plays a crucial role in the catalytic activity of catalysts due to the exposure of more active sites. Inspired by this, we successfully prepared a series of ε-MnO2 with different lattice disorder defects via several simple methods and applied them to the catalytic oxidation of two typical VOCs (toluene and acetone). Various characterizations and performance tests confirm that the ultrathin (1.4-1.8 nm) structure and strong lattice disorder can enhance the low temperature reduction and reactive oxygen species, so that MnO2-R exhibits excellent toluene and acetone oxidation activities. In-situ DRIFTS tests were carried out to detect reaction intermediates in the toluene and acetone oxidation process on the catalyst surface. Moreover, we propose a possible synergistic mechanism for toluene and acetone mixtures catalytic oxidation. This work reveals the important role of lattice disorder defects in the catalytic oxidation of VOCs on Mn-based catalysts, and deepens the insights of the reaction path in toluene and acetone catalytic oxidation.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 2023 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:653 |
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| Enthalten in: |
Journal of colloid and interface science - 653(2023), Pt B vom: 30. Jan., Seite 1205-1216 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Bai, Baobao [VerfasserIn] |
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| Links: |
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| Themen: |
ε-MnO(2) |
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| Anmerkungen: |
Date Revised 30.10.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1016/j.jcis.2023.09.175 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM362911444 |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Copyright © 2023 Elsevier Inc. All rights reserved. | ||
| 520 | |a Catalytic oxidation proves the most promising technology for volatile organic compounds (VOCs) abatement. Lattice disorder plays a crucial role in the catalytic activity of catalysts due to the exposure of more active sites. Inspired by this, we successfully prepared a series of ε-MnO2 with different lattice disorder defects via several simple methods and applied them to the catalytic oxidation of two typical VOCs (toluene and acetone). Various characterizations and performance tests confirm that the ultrathin (1.4-1.8 nm) structure and strong lattice disorder can enhance the low temperature reduction and reactive oxygen species, so that MnO2-R exhibits excellent toluene and acetone oxidation activities. In-situ DRIFTS tests were carried out to detect reaction intermediates in the toluene and acetone oxidation process on the catalyst surface. Moreover, we propose a possible synergistic mechanism for toluene and acetone mixtures catalytic oxidation. This work reveals the important role of lattice disorder defects in the catalytic oxidation of VOCs on Mn-based catalysts, and deepens the insights of the reaction path in toluene and acetone catalytic oxidation | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Mixture gas | |
| 650 | 4 | |a Oxidation of toluene and acetone | |
| 650 | 4 | |a Reaction mechanism | |
| 650 | 4 | |a VOCs combustion | |
| 650 | 4 | |a Water resistance | |
| 650 | 4 | |a ε-MnO(2) | |
| 700 | 1 | |a Huang, Ying |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Jiajia |e verfasserin |4 aut | |
| 700 | 1 | |a Lei, Juan |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Shuang |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Jiancheng |e verfasserin |4 aut | |
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