Nitrogen-doped, carbon-coated (ZnMn)Se/MnSe porous nanospheres (Zn–Mn–Se@NC) were designed via a co-precipitation method and a vapor-phase selenization strategy, which maintained a capacity of 290 mAh/g for 5 A/g after 1000 cycles and 190 mAh/g at 10 A/g. The satisfied cycling performance was due to the porous nanosphere that relieve volume effect of electrode. Furthermore, the heterogeneous interface formed by (ZnMn)Se and MnSe enhances thermodynamic stability and electrochemical reaction kinetics considerably, improving the electron/Na transfer rate. Furthermore, Zn–Mn–Se@NC, a bimetallic selenide, exhibits superior conductivity that improves the rate capacity of the Zn–Mn–Se@NC electrode. As an anode, the long-cycle and high-rate sodium-ion batteries using the Zn–Mn–Se@NC porous nanospheres have potential applications in electronic devices.

中文翻译：

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氮掺杂、碳涂层 (Zn0.71Mn0.29)Se/MnSe 异质结构作为快速充电钠离子电池的阳极

通过共沉淀法和气相硒化策略设计了氮掺杂、碳包覆的(ZnMn)Se/MnSe多孔纳米球(Zn-Mn-Se@NC)，其容量保持在290 mAh/g 1000 次循环后为 5 A/g，10 A/g 时为 190 mAh/g。令人满意的循环性能归功于多孔纳米球减轻了电极的体积效应。此外，(ZnMn)Se和MnSe形成的异质界面显着增强了热力学稳定性和电化学反应动力学，提高了电子/Na传输速率。此外，Zn-Mn-Se@NC（一种双金属硒化物）表现出优异的导电性，可提高 Zn-Mn-Se@NC 电极的倍率容量。作为阳极，使用Zn-Mn-Se@NC多孔纳米球的长循环和高倍率钠离子电池在电子设备中具有潜在的应用。