2D Sulfur‐doped TiSe₂/Fe₃O₄ (named as S‐TiSe₂/Fe₃O₄) heterostructures are synthesized successfully based on a facile oil phase process. The Fe₃O₄ nanoparticles, with an average size of 8 nm, grow uniformly on the surface of S‐doped TiSe₂ (named as S‐TiSe₂) nanoplates (300 nm in diameter and 15 nm in thickness). These heterostructures combine the advantages of both S‐TiSe₂ with good electrical conductivity and Fe₃O₄ with high theoretical Li storage capacity. As demonstrated potential applications for energy storage, the S‐TiSe₂/Fe₃O₄ heterostructures possess high reversible capacities (707.4 mAh g⁻¹ at 0.1 A g⁻¹ during the 100th cycle), excellent cycling stability (432.3 mAh g⁻¹ after 200 cycles at 5 A g⁻¹), and good rate capability (e.g., 301.7 mAh g⁻¹ at 20 A g⁻¹) in lithium‐ion batteries. As for sodium‐ion batteries, the S‐TiSe₂/Fe₃O₄ heterostructures also maintain reversible capacities of 402.3 mAh g⁻¹ at 0.1 A g⁻¹ after 100 cycles, and a high rate capacity of 203.3 mAh g⁻¹ at 4 A g⁻¹.

中文翻译：

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S掺杂TiSe2纳米板/ Fe3O4纳米颗粒异质结构

基于简便的油相过程成功地合成了2D的硫掺杂TiSe ₂ / Fe ₃ O ₄（称为S-TiSe ₂ / Fe ₃ O ₄）异质结构。Fe ₃ O ₄纳米颗粒平均尺寸为8 nm，在S掺杂TiSe ₂（称为S-TiSe ₂）纳米板（直径300 nm，厚度15 nm）的表面上均匀生长。这些异质结构结合了S-TiSe ₂具有良好的导电性和Fe ₃ O ₄的优点。具有较高的理论锂存储容量。如已证明的潜在储能应用，S-TiSe ₂ / Fe ₃ O ₄异质结构具有高可逆容量（在第100个循环中，在0.1 A g ^-1时为707.4 mAh g ^-1），出色的循环稳定性（432.3 mAh g ^-1）在5A克200次循环后^-1），和良好的倍率性能（例如，301.7毫安克^-1在20 A G ^-1在锂离子电池）。对于钠离子电池，S-TiSe ₂ / Fe ₃ O ₄异质结构还保持了402.3 mAh g ^-1的可逆容量。100次循环后，其在0.1 A g ^-1下的高倍率容量和4 A g ^-1下的203.3 mAh g ^-1的高倍率容量。