【摘要】 采用水热法制备WO₃和Ce掺杂的WO₃（Ce:WO₃）纳米颗粒，以Ce:WO₃填充聚二甲基硅氧烷（PDMS）制备复合膜，研究Ce掺杂对WO₃颗粒及复合膜介电性能的影响，并以Ce:WO₃/PDMS复合膜作为摩擦纳米发电机（TENG）的摩擦层（Ce:WO₃/PDMS-TENG）,研究Ce介电增强WO₃对TENG输出性能的影响。结果表明Ce掺杂对WO₃纳米颗粒的晶体结构和晶粒尺寸几乎没有影响，但能有效增强纳米WO₃的介电性能，介电常数由9.99提升至20.83。体积比为8%、掺杂比1.5%Ce:WO₃/PDMS-TENG,相比纯PDMS-TENG输出性能有显著提升，开路电压由114 V提升至279 V、短路电流由1.38μA提升至7.02μA、转移电荷由35.7nC提升至99.7nC。更多还原

【Abstract】 WO₃ and Ce-doped WO₃（Ce: WO₃） nanoparticles were prepared by a hydrothermal method, and the Ce: WO₃ filled polydimethylsiloxane（PDMS） composite membranes were prepared. The influence of Ce doping on the dielectric properties of WO₃ particles and composite membranes were studied. And the Ce: WO₃/PDMS composite membranes was used as the friction layer of TENG（Ce: WO₃/PDMS-TENG） to study the effect of Ce dielectric enhancement of WO₃ on the output performance of TENG. The results indicate that the Ce-doping has no effect on the crystal structure and grain size of WO₃ nanoparticle, but the relative dielectric constant of WO₃ can be effectively increased from 9.99 to 20.83. Compared with the pure PDMS-TENG, the output performance of 1.5 mol% Ce: WO₃/PDMS-TENG was significantly improved, with an increase in the open-circuit voltage from 114 V to 279 V, the short-circuit current from 1.38 μA to 7.02 μA, and the transferred charge from 35.7 nC to 99.7 nC.更多还原