期刊
JOURNAL OF ENERGY STORAGE
卷 50, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.est.2022.104617
关键词
MXene; CoS2 ; CuCo2S4 ; Pseudocapacitor; Asymmetric supercapacitor
资金
- IIT (ISM) , Dhanbad
- National Research Foundation (NRF) of the Republic of Korea - Ministry of Education, the Republic of Korea [NRF-2014R1A6A1031189, NRF-2020R1I1A3073981]
- Regional University Superior Scientist Research Program
- Ministry of Education
A three-dimensional MXene-based nanocomposite material with excellent electrochemical performance and cyclic life has been successfully synthesized, which can be used for the design of supercapacitor devices.
A novel, one-pot hydrothermal synthesis of Ti3C2Tx (MXene)/CoS2/CuCo2S4 nanohybrid with multiple reactive equivalents has been demonstrated for designing of supercapacitor devices in both symmetric and asymmetric mode. Morphological study established successful coating with intercalation of sheet-like CoS2 and particle-like CuCo2S4 on Ti3C2Tx nanosheets. The ratio of MXene to CoS2/CuCo(2)S(4 & nbsp;)was varied to optimize the electrochemical efficiency. Three-electrode set up of electrochemical analysis revealed that the 5:1 ratio of MXene to CoS2/CuCo2S4, delivered the highest specific capacitance of 706.5 F g-1 at 1 A g(-1) current density. The corresponding fabricated asymmetric device provided utmost specific capacitance (93.7 F g(-1)) and energy density (42.2 Wh kg(-1)) along with excellent cyclic life of 96% capacitance retention after 10,000 cycles. Additionally, the device was successful in glowing LEDs and operating a 2 V fan. This proposed MXene based hybrid nanocomposite electrode with supreme electrochemical energy storage efficiency and excellent cyclic life holds immense potential for future energy technologies.
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