Effect of preparation temperature on the structure and lithium storage properties of multicomponent composites fabricated by one-step thermal decomposition method from the leaching liquor of jarosite residue

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 °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 °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.