Academic Journal
Carbon-Interacted AlF 3 Clusters as Robust Catalyst for Dehydrofluorination Reaction with Enhanced Undercoordination and Stability
| العنوان: | Carbon-Interacted AlF 3 Clusters as Robust Catalyst for Dehydrofluorination Reaction with Enhanced Undercoordination and Stability |
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| المؤلفون: | Yiwei Sun, Xiaoli Wei, Wei Zhang, Zhen Wang, Jianhai Jiang, Fangcao Liu, Bing Liu, Wenfeng Han |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Biochemistry, Medicine, Molecular Biology, Evolutionary Biology, Ecology, Marine Biology, Inorganic Chemistry, Computational Biology, Environmental Sciences not elsewhere classified, – c structure, potent greenhouse gases, confinement effect contributes, 350 ° c, prepare efficient catalysts, 5 molecular sieves, 3 , carbon interacted alf, interacted alf, catalysts play, traditional pyrolysis, thermal stability, strong interaction, situ fluorination, robust catalyst, results show, reaction temperature, reaction rate, major role, high activity, hfcs ) |
| الوصف: | Conversion of potent greenhouse gases, hydrofluorocarbons (HFCs), to value-added hydrofluoroolefins (HFOs) is of great importance. AlF 3 catalysts play a major role in this process. Formation and maintenance under coordinated Al are the key to prepare efficient catalysts. Herein, carbon interacted AlF 3 nanoclusters catalyst (AlF 3 –SAPO-5) was effectively achieved with SAPO-5 molecular sieves as precursors via pyrolysis followed by in situ fluorination. This process results in a strong interaction between the carbonaceous material and active aluminum (Al) species. The results show that AlF 3 –SAPO-5 possesses both high activity and thermal stability. For 1,1-difluoroethane (HFC-152a) dehydrofluorination, the conversion can reach up to 95% at a reaction temperature of 350 °C. The reaction rate is almost 4 times higher than that of AlF 3 prepared by traditional pyrolysis (AlF 3 -py). It implies that the confinement effect contributes to the formation of AlF 3 nanoclusters with abundant 4- and 5-coordinated Al species stabilized by the F–Al–O–C structure. In addition, the carbon-interacted AlF 3 nanoclusters exhibit superb sintering resistance. Given its fantastic activity and thermal stability, the carbon-interacted AlF 3 nanoclusters show great potential for the catalytic dehydrofluorination of fluorinated alkanes. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| Relation: | https://figshare.com/articles/journal_contribution/Carbon-Interacted_AlF_sub_3_sub_Clusters_as_Robust_Catalyst_for_Dehydrofluorination_Reaction_with_Enhanced_Undercoordination_and_Stability/25117955 |
| DOI: | 10.1021/acscatal.3c05921.s001 |
| الاتاحة: | https://doi.org/10.1021/acscatal.3c05921.s001 https://figshare.com/articles/journal_contribution/Carbon-Interacted_AlF_sub_3_sub_Clusters_as_Robust_Catalyst_for_Dehydrofluorination_Reaction_with_Enhanced_Undercoordination_and_Stability/25117955 |
| Rights: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.B3DA77A9 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acscatal.3c05921.s001 |
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