The series samples of Ti1-xCexO2 (x=0, 0.01, 0.02, 0.04, 0.06, 0.07 and 0.09) were prepared by Sol-Gel process. The particle sizes, morphologies, solid solution range and phase relations of Ti1-xCexO2 samples were studied by XRD, TEM and HR-TEM. Meanwhile, the Rietveld refinement method was employed to study the effect of Ce doped to crystal structure of TiO2. The results show that the solid solution of Ti1-xCexO2 can be formed by doping of Ce to TiO2, and x=0~0.06. The crystallization size of Ti1-xCexO2 is about 5~10 nm, its average particle size is about 35 nm, and they are uniform.
| 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 |