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Issue 24, 2017
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Li4Ti5O12–TiO2/MoO2 nanoclusters-embedded into carbon nanosheets core/shell porous superstructures boost lithium ion storage

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Abstract

Ti-based materials are well-known to be good anode materials for lithium ion batteries because of their negligible volume change during the charge/discharge process. Nevertheless, poor electronic conductivity makes them exhibit relatively low capacity. Herein, we report our design of three-dimensional hierarchical Li4Ti5O12–TiO2/MoO2 nanoclusters embedded into carbon nanosheets core/shell porous superstructures for achieving more efficient lithium ion storage. The resulting hybrid makes full use of the advantage of high-capacity MoO2 nanoclusters and robust Li4Ti5O12–TiO2 substrate as well as high-conductivity carbon nanosheets. Such an assembly is highly particular for not only endowing enhanced ion diffusion and rapid electron transfer, but also preventing MoO2 nanoclusters from agglomeration and oxidation. Benefitting from the advantageous structural feature and synergistic effect of the components, the Li4Ti5O12–TiO2@MoO2/C exhibits a high reversible specific capacity of 413 mA g−1 at a current density of 1000 mA g−1 up to 500 cycles, indicating its high stability.

Graphical abstract: Li4Ti5O12–TiO2/MoO2 nanoclusters-embedded into carbon nanosheets core/shell porous superstructures boost lithium ion storage

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Publication details

The article was received on 23 Mar 2017, accepted on 15 May 2017 and first published on 09 Jun 2017


Article type: Communication
DOI: 10.1039/C7TA02565C
Citation: J. Mater. Chem. A, 2017,5, 12096-12102
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    Li4Ti5O12–TiO2/MoO2 nanoclusters-embedded into carbon nanosheets core/shell porous superstructures boost lithium ion storage

    Y. Yang, S. Wang, M. Luo, W. Wang, F. Lv, Z. Tang and S. Guo, J. Mater. Chem. A, 2017, 5, 12096
    DOI: 10.1039/C7TA02565C

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