摘要
Multicomponent composites are synthesized via a one-step liquid thermal-decomposition method with the leaching liquor of industrial jarosite residue and sucrose as raw materials. The results demonstrate that the preparation temperature (700, 800, and 900 degrees C) has a great impact on the composition and lithium storage performance of the as-prepared samples. In particular, the sample (Fe2O3/Fe3O4/ZnFe2O4/ZnS/Carbon) prepared at the temperature of 800 degrees C exhibits superior lithium storage performance in terms of lithium storage activity (817.2 m A h g(-1) at 0.2 A g(-1)), high-rate capability (348.5 m A h g(-1) at 5.0 A g(-1)), and cyclability (689.6 mA h g(-1) over 300 cycles at 0.5 A g(-1)). The work achieves the low-cost and facile fabrication of high-performance Fe-based anode materials for lithium-ion batteries and provides an avenue for the high-value utilization of Fe, Zn, and S resources in industrial jarosite residue.
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单位桂林理工大学