Shielded bifunctional nanoreactor enabled tandem catalysis for plasma methane coupling
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| Natura: | Recurso digital |
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2025
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| _version_ | 1866901942334128128 |
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| author | Lu, Chunqiang Wang, Yaolin Xu, Ruidong Wong, Roong Jien Xi, Shibo Liu, Wen Wang, Hua Tu, Xin Li, Kongzhai |
| author_facet | Lu, Chunqiang Wang, Yaolin Xu, Ruidong Wong, Roong Jien Xi, Shibo Liu, Wen Wang, Hua Tu, Xin Li, Kongzhai |
| contents | <p>The direct conversion of methane into valuable unsaturated C2 hydrocarbons (C2H2 and C2H4) attracts growing attention. Non-thermal plasma offers a promising approach for this process under mild conditions. However, the competing formation of C2H6 and excessive dehydrogenation limit the selectivity toward C2H2 and C2H4. Herein, we develop a promising shielded<br> bifunctional nanoreactor with a hollow structure and mesoporous channels (Na2WO4-Mn3O4/m-SiO2) that effectively limits CH4 overactivation and pro motes selective coupling to form C2H2 and C2H4 under plasma activation, achieving 39% CH4 conversion with 42.3% C2H2 and C2H4 fraction. This nanoreactor features isolated Na2WO4 embedded within the channels and<br> Mn3O4confinedinthecavityoftheSiO2hollownanospheres,enablinginternal tandem catalysis at co-located active sites. Na2WO4 induces the conversion of diffused CH4 and CH3 into reactive intermediates (*CH and *CH2), which sub sequently couple on the Mn3O4 surface to form C2H2 and C2H4.Furthermore, themesoporouschannelsinhibittheplasmadischargewithinthenanoreactor,<br> preventing deep dehydrogenation of CHx species to solid carbon. This nanoreactor demonstrates a highly selectiverouteforthenonoxidativecon version of methane to valuable C2 hydrocarbons, offering a new paradigm for the rational design of catalysts for plasma-driven chemical processes. </p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_1038_s41467-025-59709-y |
| institution | Zenodo |
| language | eng |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Shielded bifunctional nanoreactor enabled tandem catalysis for plasma methane coupling Lu, Chunqiang Wang, Yaolin Xu, Ruidong Wong, Roong Jien Xi, Shibo Liu, Wen Wang, Hua Tu, Xin Li, Kongzhai Non-thermal plasma Bifunctional nanoreactor Acetylene Ethylene Methane <p>The direct conversion of methane into valuable unsaturated C2 hydrocarbons (C2H2 and C2H4) attracts growing attention. Non-thermal plasma offers a promising approach for this process under mild conditions. However, the competing formation of C2H6 and excessive dehydrogenation limit the selectivity toward C2H2 and C2H4. Herein, we develop a promising shielded<br> bifunctional nanoreactor with a hollow structure and mesoporous channels (Na2WO4-Mn3O4/m-SiO2) that effectively limits CH4 overactivation and pro motes selective coupling to form C2H2 and C2H4 under plasma activation, achieving 39% CH4 conversion with 42.3% C2H2 and C2H4 fraction. This nanoreactor features isolated Na2WO4 embedded within the channels and<br> Mn3O4confinedinthecavityoftheSiO2hollownanospheres,enablinginternal tandem catalysis at co-located active sites. Na2WO4 induces the conversion of diffused CH4 and CH3 into reactive intermediates (*CH and *CH2), which sub sequently couple on the Mn3O4 surface to form C2H2 and C2H4.Furthermore, themesoporouschannelsinhibittheplasmadischargewithinthenanoreactor,<br> preventing deep dehydrogenation of CHx species to solid carbon. This nanoreactor demonstrates a highly selectiverouteforthenonoxidativecon version of methane to valuable C2 hydrocarbons, offering a new paradigm for the rational design of catalysts for plasma-driven chemical processes. </p> |
| title | Shielded bifunctional nanoreactor enabled tandem catalysis for plasma methane coupling |
| topic | Non-thermal plasma Bifunctional nanoreactor Acetylene Ethylene Methane |
| url | https://doi.org/10.1038/s41467-025-59709-y |