Fundamentals of Unanticipated Efficiency of Gd2O3-based Catalysts in Oxidative Coupling of Methane
© 2024 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH..
Improving the selectivity in the oxidative coupling of methane to ethane/ethylene poses a significant challenge for commercialization. The required improvements are hampered by the uncertainties associated with the reaction mechanism due to its complexity. Herein, we report about 90 % selectivity to the target products at 11 % methane conversion over Gd2O3-based catalysts at 700 °C using N2O as the oxidant. Sophisticated kinetic studies have suggested the nature of adsorbed oxygen species and their binding strength as key parameters for undesired methane oxidation to carbon oxides. These descriptors can be controlled by a metal oxide promoter for Gd2O3.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:63 |
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| Enthalten in: |
Angewandte Chemie (International ed. in English) - 63(2024), 14 vom: 02. März, Seite e202319192 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wu, Kai [VerfasserIn] |
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| Links: |
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| Themen: |
Journal Article |
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| Anmerkungen: |
Date Revised 23.03.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1002/anie.202319192 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Improving the selectivity in the oxidative coupling of methane to ethane/ethylene poses a significant challenge for commercialization. The required improvements are hampered by the uncertainties associated with the reaction mechanism due to its complexity. Herein, we report about 90 % selectivity to the target products at 11 % methane conversion over Gd2O3-based catalysts at 700 °C using N2O as the oxidant. Sophisticated kinetic studies have suggested the nature of adsorbed oxygen species and their binding strength as key parameters for undesired methane oxidation to carbon oxides. These descriptors can be controlled by a metal oxide promoter for Gd2O3 | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a oxygen species | |
| 650 | 4 | |a reaction mechanism | |
| 650 | 4 | |a temporal analysis of products | |
| 700 | 1 | |a Zanina, Anna |e verfasserin |4 aut | |
| 700 | 1 | |a Kondratenko, Vita A |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Lin |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Jianshu |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Juan |e verfasserin |4 aut | |
| 700 | 1 | |a Lund, Henrik |e verfasserin |4 aut | |
| 700 | 1 | |a Bartling, Stephan |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Yuming |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Guiyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Kondratenko, Evgenii V |e verfasserin |4 aut | |
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