Construction of heterostructured NiFe2O4-C nanorods by transition metal recycling from simulated electroplating sludge leaching solution for high performance lithium ion batteries
| Autor: | Meilin Liu, Changzhou Weng, Youpeng Li, Zhang Lin, Yanzhen Liu, Junhua Hu, Xueqian Lei, Chenghao Yang, Weizhen Liu |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Nanoscale. 12:13398-13406 |
| ISSN: | 2040-3372 2040-3364 |
| DOI: | 10.1039/d0nr02290j |
| Popis: | NiFe2O4 has been regarded as one of the promising candidates for lithium-ion battery (LIB) anode materials due to its high theoretical specific capacity. However, the large volume expansion and pulverization of NiFe2O4 during the charge/discharge process result in severe capacity fading. Herein, heterostructured NiFe2O4-C nanorods have been successfully fabricated by recovering transition metals from simulated electroplating sludge leaching solution. The constructed NiFe2O4-C heterointerface plays a vital role in accommodating volume change, stabilizing the reaction products and providing rapid electron and Li+ ion transportation ability, resulting in a high and stable Li+ accommodation performance. The fabricated NiFe2O4-C nanorods demonstrate a high specific capacity (889.9 mA h g−1 at 100 mA g−1), impressive rate capability (861.5, 704.5, 651.4, 579.6 and 502.1 mA h g−1 at 0.2, 0.6, 1.0, 2.0 and 5.0 A g−1) and cycling stability (650.2 mA h g−1 at 2 A g−1 after 500 cycles). This work exemplifies a facile and effective approach for the fabrication of high performance LIB electrode materials by recycling metals from electroplating sludge in an application-oriented manner. |
| Databáze: | OpenAIRE |
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