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Issue 4, 2016
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Assembly of TiO2/graphene with macroporous 3D network framework as an advanced anode material for Li-ion batteries

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Abstract

Three-dimensional (3D) TiO2–graphene frameworks (TGFs) with macroporous architecture were fabricated through the in situ synthesis of TiO2 with the participation of graphene oxide followed by hydrothermal assembly. TGFs exhibited a 3D hierarchical porous architecture with mesopores (2.4 nm), macropores (10–30 μm) and a large specific surface area (196 m2 g−1), which not only provided contacts between the electrode material and the electrolyte but also increased the mass transport of Li-ions in the charge/discharge process. When it was used as a cathode material in Li-ion batteries, TGFs presented an excellent reversible specific capacity of 210 mA h g−1 at 100 mA g−1 and an outstanding reversible cycling stability (111 mA h g−1 after 500 cycles); even at the current density of 500 mA g−1, TGF also performed very well. This excellent electrochemical performance was attributed to the unique 3D hierarchical porous architecture and the synergistic effects of TiO2 and graphene in Li-ion storage and transport.

Graphical abstract: Assembly of TiO2/graphene with macroporous 3D network framework as an advanced anode material for Li-ion batteries

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Publication details

The article was received on 02 Nov 2015, accepted on 14 Dec 2015 and first published on 17 Dec 2015


Article type: Paper
DOI: 10.1039/C5RA22969C
RSC Adv., 2016,6, 3335-3340

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    Assembly of TiO2/graphene with macroporous 3D network framework as an advanced anode material for Li-ion batteries

    F. Li, J. Jiang, X. Wang, F. Liu, J. Wang, Y. Chen, S. Han and H. Lin, RSC Adv., 2016, 6, 3335
    DOI: 10.1039/C5RA22969C

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