Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 868, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2021.159159
Keywords
MXene; Supercapacitor; CNT/PANI; Ternary material; Synergy
Categories
Funding
- National Natural Science Foundation of China [51977009, 11774027, 51132002]
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The MXene-CNT/PANI ternary composite electrode demonstrates excellent specific capacitance performance and high stable cycle performance, making it a promising material for supercapacitor electrode.
MXene is considered a promising two-dimensional (2D) material with excellent conductivity, and it has been proved to be a potential material for supercapacitor electrode. However, the supercapacitive performances of the pristine MXene are always not satisfactory due to the innate re-stacking tendency of the MXene nanosheets. In this work, the carbon nanotubes/polyaniline (CNT/PANI) nanocomposite was introduced and obtained MXene-CNT/PANI ternary composite electrode. Thanks to the synergy between each component, MXene-CNT/PANI exhibited enhanced specific capacitance that reached 429.4 F/g at 1A/g, which is completely better than that of any single compound in the ternary material. Besides, this ternary composite electrode holds a high stable cycle performance with over 93% retention after 10,000 cycles. Furthermore, a quantitative analysis was also carried out to prove the relationship between the capacitive contribution and the scan rate of the MXene-CNT/PANI. (C) 2021 Elsevier B.V. All rights reserved.
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