CO2 hydrogenation over Fe-Co bimetallic catalysts with tunable selectivity through a graphene fencing approach
© 2024. The Author(s)..
Tuning CO2 hydrogenation product distribution to obtain high-selectivity target products is of great significance. However, due to the imprecise regulation of chain propagation and hydrogenation reactions, the oriented synthesis of a single product is challenging. Herein, we report an approach to controlling multiple sites with graphene fence engineering that enables direct conversion of CO2/H2 mixtures into different types of hydrocarbons. Fe-Co active sites on the graphene fence surface present 50.1% light olefin selectivity, while the spatial Fe-Co nanoparticles separated by graphene fences achieve liquefied petroleum gas of 43.6%. With the assistance of graphene fences, iron carbides and metallic cobalt can efficiently regulate C-C coupling and olefin secondary hydrogenation reactions to achieve product-selective switching between light olefins and liquefied petroleum gas. Furthermore, it also creates a precedent for CO2 direct hydrogenation to liquefied petroleum gas via a Fischer-Tropsch pathway with the highest space-time yields compared to other reported composite catalysts.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:15 |
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| Enthalten in: |
Nature communications - 15(2024), 1 vom: 13. Jan., Seite 512 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liang, Jiaming [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 16.01.2024 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1038/s41467-024-44763-9 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a © 2024. The Author(s). | ||
| 520 | |a Tuning CO2 hydrogenation product distribution to obtain high-selectivity target products is of great significance. However, due to the imprecise regulation of chain propagation and hydrogenation reactions, the oriented synthesis of a single product is challenging. Herein, we report an approach to controlling multiple sites with graphene fence engineering that enables direct conversion of CO2/H2 mixtures into different types of hydrocarbons. Fe-Co active sites on the graphene fence surface present 50.1% light olefin selectivity, while the spatial Fe-Co nanoparticles separated by graphene fences achieve liquefied petroleum gas of 43.6%. With the assistance of graphene fences, iron carbides and metallic cobalt can efficiently regulate C-C coupling and olefin secondary hydrogenation reactions to achieve product-selective switching between light olefins and liquefied petroleum gas. Furthermore, it also creates a precedent for CO2 direct hydrogenation to liquefied petroleum gas via a Fischer-Tropsch pathway with the highest space-time yields compared to other reported composite catalysts | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Guo, Lisheng |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Wenhang |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Chengwei |e verfasserin |4 aut | |
| 700 | 1 | |a Gao, Weizhe |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Xiaoyu |e verfasserin |4 aut | |
| 700 | 1 | |a He, Yingluo |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Guohui |e verfasserin |4 aut | |
| 700 | 1 | |a Yasuda, Shuhei |e verfasserin |4 aut | |
| 700 | 1 | |a Liang, Bing |e verfasserin |4 aut | |
| 700 | 1 | |a Tsubaki, Noritatsu |e verfasserin |4 aut | |
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