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- W2912199745 abstract "Abstract Constructing special nanostructures and ion doping are effective strategies to improve the intrinsic Li storage performance of anode materials in lithium ion batteries (LIBs). Various transition-metal-doped hierarchical TiO2 nanofiber/nanosheet structure (HTFSs) were in-situ fabricated in this work by the electrospinning followed by a SiO2-assisted alkali-hydrothermal method, aiming to further explore the potential anode capacity of TiO2. Firstly, Mn-doped HTFSs (Mn-HTFSs) with different Mn2+ doping amounts (0, 10, 15 and 20 wt%) were studied in detail as representative. Their morphologies, components, structures and pore properties were obtained and analyzed by different characterization techniques. Compared with the traditional electrospun TiO2 fibers and other Mn-HTFSs, 15 wt% Mn2+ doped Mn-HTFSs as the anode material for LIBs exhibited the highest reversible discharge capacity of 262.2 mA h g−1 at the current density of 0.4 A g−1 after 1200 cycles, with nearly a 100% capacity retention between 20 and 1200 cycles. The excellent performance of 15 wt% Mn2+ doped Mn-HTFSs can be convincingly attributed to its in-situ formed hierarchical nanofiber/nanosheet structure, high surface area and especially appropriate amount of Mn2+ doping. Furthermore, Mn2+ doped Mn-HTFSs also delivered a better capacity performance than other transition-metal-doped HTFSs (A- HTFSs (A = Ni, Co, Zn and Cu)) fabricated by the similar method, suggesting its promising application prospect in practical LIBs." @default.
- W2912199745 created "2019-02-21" @default.
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- W2912199745 date "2019-05-01" @default.
- W2912199745 modified "2023-09-24" @default.
- W2912199745 title "In-situ fabrication of transition-metal-doped TiO2 nanofiber/nanosheet structure for high-performance Li storage" @default.
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- W2912199745 doi "https://doi.org/10.1016/j.jallcom.2019.02.152" @default.
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