ZHENG Jiahong (1983-), female, Ph.D., Associate Professor. E-mail: jhzheng@chd.edu.cn
Transition metal sulfide is an active material with high specific capacitance. MnS/Ni3S2 electrode material was hydrothermal prepared on nickel foam by a simple and time-saving method. The effects of hydrothermal reaction time and temperature on the morphology and electrochemical performances of the sample were investigated. The results show that MnS/Ni3S2 electrode material has high specific capacitance and excellent magnification performance, and the retention rate of specific capacitance is 90% after 2 500 cycles. A hybrid supercapacitor device is assembled with MnS/Ni3S2 as the positive electrode and activated carbon (AC) as the negative electrode. MnS/Ni3S2//AC can provide 30.2 Wh·kg-1 energy density when the power density is 700 W·kg-1. The specific capacitance retention is 116.0% after 3 000 cycles. It shows that MnS/Ni3S2 is expected to provide potential application value in supercapacitor.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |