ZnSe nanoparticles dispersed in reduced graphene oxides with enhanced electrochemical properties in lithium/sodium ion batteries†,RSC Advances

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ZnSe nanoparticles dispersed in reduced graphene oxides with enhanced electrochemical properties in lithium/sodium ion batteries†
RSC Advances ( IF 3.9 ) Pub Date : 2018-07-18 00:00:00 , DOI: 10.1039/c8ra03479f
Xi Cao ₁ , Aijun Li _{2,

3} , Yang Yang ₂ , Jitao Chen ₁

Affiliation

A ZnSe-reduced graphene oxide (ZnSe-rGO) nanocomposite with ZnSe dispersed in rGO is prepared via a one-step hydrothermal method and applied as the anode materials for both lithium and sodium ion batteries (LIBs/SIBs). The as-prepared composite exhibits greatly enhanced reversible capacity, excellent cycling stability and rate capability (530 mA h g⁻¹ after 100 cycles at 500 mA g⁻¹ in LIBs, 259.5 mA h g⁻¹ after 50 cycles at the current density of 100 mA g⁻¹ in SIBs) compared with bare ZnSe in both lithium and sodium storage. The rGO plays an influential role in enhancing the conductivity of the nanocomposites, buffering the volume change and preventing the aggregation of ZnSe particles during the cycling process, thus securing the high structure stability and reversibility of the electrode.

中文翻译：

ZnSe 纳米粒子分散在还原的氧化石墨烯中，在锂/钠离子电池中具有增强的电化学性能†

通过一步水热法制备了一种 ZnSe 还原的氧化石墨烯 (ZnSe-rGO) 纳米复合材料，其中 ZnSe 分散在 rGO 中，并用作锂离子和钠离子电池 (LIBs/SIBs) 的负极材料。所制备的复合材料表现出显着增强的可逆容量、优异的循环稳定性和倍率性能（在 LIB 中以 500 mA g ^{-1循环 100 次后为 530 mA hg}^-1 ，在 100 mA 电流密度下循环 50 次后为259.5 mA hg ^-1 g ^-1在 SIBs 中）与锂和钠存储中的裸 ZnSe 相比。rGO在提高纳米复合材料的电导率、缓冲体积变化和防止循环过程中ZnSe颗粒聚集方面发挥着重要作用，从而保证了电极的高结构稳定性和可逆性。

更新日期：2018-07-18

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