A microsphere discrete structure of CoNi_2S_4 was prepared through one-pot hydrothermal reaction and characterized by FTIR, XRD and SEM. The as-prepared CoNi_2S_4 served as a supercapacitor, showing a specific capacit...A microsphere discrete structure of CoNi_2S_4 was prepared through one-pot hydrothermal reaction and characterized by FTIR, XRD and SEM. The as-prepared CoNi_2S_4 served as a supercapacitor, showing a specific capacitance of 1129.5 F/g with over 99% coulombic efficiency at a current density of 4 A/g in 3 M KOH. And after 3000 cycles of charge and discharge tests, 92.3% of its initial capacitance can be still maintained. The results demonstrate that the material is promising as an electrode material for supercapacitors in energy storage.展开更多
基金Supported by the Natural Science Foundation of Fujian Province(No.2017J01420)Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry(FJKL_FBCM201803)
文摘A microsphere discrete structure of CoNi_2S_4 was prepared through one-pot hydrothermal reaction and characterized by FTIR, XRD and SEM. The as-prepared CoNi_2S_4 served as a supercapacitor, showing a specific capacitance of 1129.5 F/g with over 99% coulombic efficiency at a current density of 4 A/g in 3 M KOH. And after 3000 cycles of charge and discharge tests, 92.3% of its initial capacitance can be still maintained. The results demonstrate that the material is promising as an electrode material for supercapacitors in energy storage.
