LIU Qi (1993-), male, Master candidate. E-mail: 526869080@qq.com
Fe@(ZnO/C) composite was prepared with resorcinol, zinc acetate dihydrate and ferrous sulfate heptahydrate by a wet chemical method and a subsequent high-temperature heat treatment. The results show that Fe@(ZnO/C) ternary composite with a ball-chain Fe powder has a better impedance matching and a higher attenuation coefficient, showing a superior electromagnetic wave absorption performance. The optimum reflection loss () is -56.01 dB at 10.91 GHz with a thickness of 2.73 mm and the effective absorption bandwidth (
) is up to 5 GHz (i.e., 8.54-13.54 GHz).
| 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 |