Ni3S4 supported on carbon cloth for high-performance flexible all-solid-state asymmetric supercapacitors

作者：Huang, Feng; Sui, Yanwei; Wei, Fuxiang; Qi, Jiqiu; Meng, Qingkun; He, Yezeng^*

来源：Journal of Materials Science: Materials in Electronics , 2018, 29(3): 2525-2536.

DOI：10.1007/s10854-017-8175-9

• ONE-POT SYNTHESIS
• NANOSTRUCTURE
• ELECTRODES
• NIS
• NANOPARTICLES
• NANOSPHERES
• GROWTH
• ARRAY
• OXIDE

NiSx-n grown on the carbon cloth (NiSx-n//CC) were successfully prepared via a facile one-step hydrothermal technique by controlling initial S2-/Ni2+ molar ratio n. Serving as a supercapacitor electrode, the specific capacitance of Ni3S4//CC (n = 3.0) has been measured to be 1340 F/g at a discharge density of 1 A/g. Also, the Ni3S4//CC displays an excellent long-time cycling stability (94.5%). Furthermore, the flexible all-solid-state supercapacitor device fabricated based on the Ni3S4//CC exhibits good supercapacitive performance with maximum power density of 6750 W/kg and superior cycling stability after 5000 continuous cycles (retention rate of cycling around 84.7%). These results indicate that the Ni3S4//CC is a promising and suitable electrode material for high-performance flexible all-solid-state supercapacitors.

• 出版日期2018-2
• 单位中国矿业大学（北京）