Abstract 3D porous nano/micro ZnFe2O4 has been prepared from the leach liquor of jarosite residue via a facile chemical coprecipitation method followed by sintering at 800 °C in air atmosphere. As anode material for lithium ion batteries, the prepared ZnFe2O4 exhibits high specific capacity, excellent rate capability, and good cycling stability, which can be due to the beneficial effects of primary nanocrystals of ZnFe2O4, the unique 3D porous nano/micro structure, and the associated pseudo-capacitive behavior during discharge/charge processes.

中文翻译：

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3D 分层多孔 ZnFe2O4 纳米/微结构作为锂离子电池的高性能负极材料

摘要 以黄钾铁矾残渣浸出液为原料，采用简便的化学共沉淀法，然后在 800 °C 空气气氛中烧结，制备了 3D 多孔纳米/微米 ZnFe2O4。作为锂离子电池负极材料，所制备的 ZnFe2O4 表现出高比容量、优异的倍率性能和良好的循环稳定性，这可能是由于 ZnFe2O4 原生纳米晶、独特的 3D 多孔纳米/微米结构以及放电/充电过程中相关的伪电容行为。