Academic Journal
Conductive Metal–Organic Framework with Superior Redox Activity as a Stable High-Capacity Anode for High-Temperature K‑Ion Batteries
| العنوان: | Conductive Metal–Organic Framework with Superior Redox Activity as a Stable High-Capacity Anode for High-Temperature K‑Ion Batteries |
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| المؤلفون: | Menghua Yang, Xian Zeng, Mo Xie, Ying Wang, Ji-Miao Xiao, Run-Hang Chen, Zi-Jian Yi, Yan-Fang Huang, De-Shan Bin, Dan Li |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Biophysics, Biochemistry, Medicine, Ecology, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, superior redox activity, sup >–, small volume deformation, rich aromatic molecules, mechanistic study revealed, 60 ° c, 455 mah g, 1600 cycles ), fast capacity fading, temperature rechargeable batteries, temperature kib anodes, efficient potassium storage, 4 , capacity potassium storage, energy storage, temperature situations, mof ), kib anode, ion batteries, capacity retention, capacity anode, high capacity, π –, temperature k |
| الوصف: | High-temperature rechargeable batteries are essential for energy storage in elevated-temperature situations. Due to the resource abundance of potassium, high-temperature K-ion batteries are drawing increasing research interest. However, raising the working temperature would aggravate the chemical and mechanical instability of the KIB anode, resulting in very fast capacity fading, especially when high capacity is pursued. Here, we demonstrated that a porous conductive metal–organic framework (MOF), which is constructed by N-rich aromatic molecules and CuO 4 units via π–d conjugation, could provide multiple accessible redox-active sites and promised robust structure stability for efficient potassium storage at high temperatures. Even working at 60 °C, this MOF anode could deliver high initial capacity (455 mAh g –1 ), impressive rate, and extraordinary cyclability (96.7% capacity retention for 1600 cycles), which is much better than those of reported high-temperature KIB anodes. The mechanistic study revealed that CN groups and CuO 4 units contributed abundant redox-active sites; the synergistic effect of π–d conjugated character and reticular porous architecture facilitated the K + /e – transport and ensured an insoluble electrode with small volume deformation, thus achieving stable high-capacity potassium storage. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| Relation: | https://figshare.com/articles/journal_contribution/Conductive_Metal_Organic_Framework_with_Superior_Redox_Activity_as_a_Stable_High-Capacity_Anode_for_High-Temperature_K_Ion_Batteries/25300946 |
| DOI: | 10.1021/jacs.3c13113.s001 |
| الاتاحة: | https://doi.org/10.1021/jacs.3c13113.s001 https://figshare.com/articles/journal_contribution/Conductive_Metal_Organic_Framework_with_Superior_Redox_Activity_as_a_Stable_High-Capacity_Anode_for_High-Temperature_K_Ion_Batteries/25300946 |
| Rights: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.DEB7A750 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/jacs.3c13113.s001 |
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