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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Hierarchical porous hollow FeFe(CN)(6) nanospheres wrapped with I-doped graphene as anode materials for lithium-ion batteries
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Hierarchical porous hollow FeFe(CN)(6) nanospheres wrapped with I-doped graphene as anode materials for lithium-ion batteries

机译:用I掺杂石墨烯包裹的分层多孔空心FeFe(CN)(6)纳米球作为锂离子电池的阳极材料

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摘要

Hierarchical porous hollow FeFe(CN)(6) nanospheres were synthesized via a facile anisotropic chemical etching route at different temperatures. Herein, we integrated these FeFe(CN)(6) nanospheres and conductive iodine-doped graphene (IG) into a lithium-ion battery (LIB) system, FeFe(CN)(6)@IG. The hollow Prussian-blue type FeFe(CN)(6) nanospheres with an average particle size of 230 nm are uniformly and tightly encapsulated by IG sheets. As an anode material for LIBs, the fabricated FeFe(CN)(6)@IG exhibits high specific capacity, excellent rate properties, and superior cycling stability. A reversible capacity can be maintained at 709 mA h g(-1) after 250 cycles at a current density of 1000 mA g(-1). Even at a current rate of 2000 mA g(-1), the capacity could reach 473 mA h g(-1). This facile fabrication strategy may pave the way for constructing high performance Prussian blue-based anode materials for potential application in advanced lithium-ion batteries.
机译:通过在不同温度下通过容易的各向异性化学蚀刻途径合成分层多孔空心FeFe(CN)(6)纳米球。 在此,我们将这些FeFE(CN)(6)纳米末端和导电碘掺杂的石墨烯(Ig)整合到锂离子电池(Lib)系统中,FeFe(CN)(6)@Ig。 平均粒径为230nm的空心普鲁士 - 蓝型FeFe(CN)(6)纳米球通过Ig片均匀封装。 作为Libs的阳极材料,制造的FeFe(CN)(6)@Ig表现出高特定的容量,优异的速率性能和优异的循环稳定性。 在电流密度为1000mAg(-1)的250次循环后,可以在709 mA H G(-1)中保持可逆容量。 即使在2000 mA G(-1)的当前速率,该容量也可以达到473 mA H g(-1)。 该容易的制造策略可以铺平用于构建高性能普鲁士蓝基阳极材料,以便在先进的锂离子电池中潜在应用。

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    Tianjin Univ Technol Tianjin Key Lab Adv Funct Porous Mat Tianjin 300384 Peoples R China;

    Tianjin Univ Technol Tianjin Key Lab Adv Funct Porous Mat Tianjin 300384 Peoples R China;

    Tianjin Univ Technol Tianjin Key Lab Adv Funct Porous Mat Tianjin 300384 Peoples R China;

    Dongguan Univ Technol Sch Environm &

    Civil Engn 1 Daxue Rd Dongguan 523808 Guangdong Peoples R China;

    Tianjin Univ Technol Tianjin Key Lab Adv Funct Porous Mat Tianjin 300384 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;无机化学;
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