| Autor: |
Buxue Wang, Ziqi Wang, Zhiyu Wang, Guodong Qian, Yuanjing Cui, Yu Yang, Banglin Chen |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
ACS applied materialsinterfaces. 7(37) |
| ISSN: |
1944-8252 |
| Popis: |
The mixed-metal-organic framework approach and a representative zirconium-metalloporphyrin framework (MOF-525) have been developed to create novel sulfur hosts and Li-S batteries. The different local environments at the centers of the porphyrin moieties in a series of MMOFs-MOF-525(2H), MOF-525(FeCl), and MOF-525(Cu)-have led to their different behaviors for the confinement of sulfur and thus Li-S batteries. The unique structure of MOF-525(Cu) has enabled each Cu(2+) site to offer two Lewis acidic sites, featuring it as a very powerful MOF host for the inclusion of sulfur and polysulfides. The S@MOF-525(Cu) cathode has demonstrated the best performance among all reported sulfur/MOFs composite cathode materials, with a reversible capacity of about 700 mAh/g at 0.5 C after 200 cycles. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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