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In situ synthesis of CNTs@Ti3C2 hybrid structures by microwave irradiation for high-performance anodes in lithium ion batteries

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Abstract

To stabilize the layer structures of MXenes, carbon nanotubes (CNTs) have been successfully grown in situ by a facile microwave irradiation method under ambient conditions. The synthesized composites based on various MXenes including Ti3C2, Ti2C and V2C exhibited hybrid structures with uniformly distributed multi-walled CNTs anchored on the layer structured MXene networks. Benefiting from the unique structural features, these composites exhibit excellent electrochemical properties as anode materials in lithium ion batteries. The CNTs@Ti3C2 composite exhibits high reversible capacities of 430 mA h g−1 at 1 A g−1 and 175 mA h g−1 at 10 A g−1 (31.25 C), and is not only better than the pristine Ti3C2 (99 mA h g−1 and 45 mA h g−1, respectively), but also superior to the recently reported MXene composites. The impressive electrochemical performance is attributed to the synergetic effects of the connective CNT bridges, large-capacity metal/metal oxides and the fine conductive MXene matrix. This in situ growth strategy of CNTs shows great potential in modulating the structure and properties of nanomaterials for advanced applications.

Graphical abstract: In situ synthesis of CNTs@Ti3C2 hybrid structures by microwave irradiation for high-performance anodes in lithium ion batteries

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Publication details

The article was received on 26 Nov 2017, accepted on 15 Jan 2018 and first published on 16 Jan 2018


Article type: Paper
DOI: 10.1039/C7TA10394H
Citation: J. Mater. Chem. A, 2018, Advance Article
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    In situ synthesis of CNTs@Ti3C2 hybrid structures by microwave irradiation for high-performance anodes in lithium ion batteries

    W. Zheng, P. Zhang, J. Chen, W. B. Tian, Y. M. Zhang and Z. M. Sun, J. Mater. Chem. A, 2018, Advance Article , DOI: 10.1039/C7TA10394H

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