期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 6, 期 8, 页码 3543-3551出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta10394h
关键词
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资金
- National Natural Science Foundation of China [51731004, 51501038, 51671054, 11472080]
- Fundamental Research Funds for the Central Universities
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.
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