Novel Fe4-based metal–organic cluster-derived iron oxides/S,N dual-doped carbon hybrids for high-performance lithium storage
| Autor: | Lei Hu, Xiaoming Lin, Qiushi Wang, Tao Meng, Xiandong Zhu, Yexiang Tong, Jindong Yang, Binbin Huang |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Nanoscale. 13:716-723 |
| ISSN: | 2040-3372 2040-3364 |
| Popis: | Metal-organic frameworks (MOFs) have been extensively used in the fabrication of new advanced electrode materials for lithium ion batteries (LIBs). However, low-productivity and high-cost are some of the main challenges of MOF-derived electrodes. Herein, we report a simple solvothermal procedure to fabricate novel Fe4-based metal-organic clusters (Fe-MOCs) with their subsequent conversion to an S,N dual-doped carbon framework incorporating iron oxides under a N2 atmosphere (namely Fe2O3@Fe3O4-SNC). The as-prepared Fe2O3@Fe3O4-SNC composite, owing to the strong interaction between the dual-doped carbon and iron oxides, shows excellent lithium storage performance as an anode with high pseudocapacitance. Furthermore, DFT computational analyses confirm that the hybrid shows excellent adsorption ability with a low energy barrier due to strong electronic interactions between the iron oxides and S,N-doped carbon matrix. In addition, Fe2O3@Fe3O4-SNC-based LIB shows high energy and power densities at the full-cell level, confirming this synthesis strategy to be a promising approach towards MOC-derived electrode materials for their application in LIBs and beyond-lithium batteries. |
| Databáze: | OpenAIRE |
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