Hybrid hierarchical micro/nanostructures possess great potential in engineering of advanced electrode materials for sodium‐ion batteries (SIBs). Herein, a sandwich hierarchical architecture composed of ZnSe nanoparticles fastened in N‐doped carbon polyhedra anchoring onto graphene with the modification of MoSe₂ nanosheets (ZnSe⊂N‐C@MoSe₂/rGO) is synthesized by a self‐template and subsequent selenization strategy. Due to the distinctive architectural and multicompositional features, these hybrids deliver a high reversible capacity of 319.4 mAh g⁻¹ at 1 A g⁻¹ for 1800 cycles, 206.5 mA h g⁻¹ at 6 A g⁻¹ for 2800 cycles, and 177.7 mAh g⁻¹ at 10 A g⁻¹ for 5000 cycles, as well as a better rate capability up to 10 A g⁻¹ with a reversible capacity of 224.4 mAh g⁻¹ as an anode material for SIBs. By comparing the capacity contribution, electrochemical impedance spectra and D_Na+ of different materials, the advantages of ZnSe⊂N‐C@MoSe₂/rGO are confirmed. The sodium storage mechanism of hybrids is further revealed by in situ X‐ray diffraction patterns and high‐resolution transmission electron microscopy results. The improved sodium storage properties of hybrids manifest the significance of elaborate construction of novel multicomponent hierarchical architectures with higher complexity.

中文翻译：

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位于石墨烯中的ZnSe⊂N-C@ MoSe2构造的三明治结构，用于有效的钠存储

混杂的分层微/纳米结构在钠离子电池（SIB）的高级电极材料工程中具有巨大的潜力。在此，通过自模板和随后的硒化策略，合成了由ZnSe纳米颗粒组成的三明治式分层结构，该结构固定在N掺杂的碳多面体上并通过修饰MoSe ₂纳米片（ZnSe⊂N-C@ MoSe ₂ / rGO ）固定在石墨烯上。由于具有独特的架构和多功能特性，这些混合动力车在1800次循环时在1 A g ^-1下提供319.4 mAh g ^-1的高可逆容量，在2800次循环下在6 A g ^-1下提供206.5 mA hg ^-1的高可逆容量。g ^-1在10 A g^-1可进行5000次循环，以及更高的速率能力（高达10 A g ^-1）和224.4 mAh g ^-1的可逆容量，是SIB的负极材料。通过比较不同材料的容量贡献，电化学阻抗谱和D _{Na +}，证实了ZnSe⊂N-C@ MoSe ₂ / rGO的优势。X射线原位衍射图谱和高分辨率透射电子显微镜结果进一步揭示了杂种的钠存储机制。杂种的改善的钠储存特性表明了精心构建具有更高复杂性的新型多组分分级体系结构的重要性。