Sonochemical self-growth of functionalized titanium carbide nanorods on Ti3C2 nanosheets for high capacity anode for lithium-ion batteries

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Two-dimensional (2D) transition metal carbides (MXenes) have been considered a promising electrode material in energy storage devices due to their outstanding electrical conductivity, excellent electrochemical performance and unique surface terminations. Herein, with inspiration from the interesting functional structure of layered MXene, we report an efficient and facile sonochemical method to synthesize an anode material; functionally activated titanium carbide nanorods grown on Ti3C2 MXene nanosheets (FTCN-MXene) in deionized water and dimethylforrnamide mixture. In a striking contrast to pristine Ti3C2Tx MXene, FTCN-MXene exhibits outstanding specific anode capacity of 1,034 mAh/g, high coulombic efficiency (98/8%) after 250 cycles, and excellent reversible cyclic stability (retention of 96.05%). Functionalized nanorods grown on metallic conducting Ti3C2 sheets create more active sites and surface area, improving Li ion insertion/extraction capability. This study opens new avenues for developing functionalized MXene-based electrode materials with enhanced performance for electrochemical energy storage devices and systems.
Publisher
ELSEVIER SCI LTD
Issue Date
2020-01
Language
English
Article Type
Article
Citation

COMPOSITES PART B-ENGINEERING, v.181

ISSN
1359-8368
DOI
10.1016/j.compositesb.2019.107583
URI
http://hdl.handle.net/10203/271647
Appears in Collection
ME-Journal Papers(저널논문)
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