Wear- and High-Temperature-Resistant IGNs/Fe3O4/PI Composites for Triboelectric Nanogenerator

作者：Cao, Zhangyi; Xie, Xi; Chen, Xin; Yu, Jiaqi; Liu, Xiukun; Huang, Yuanxing^*; Xu, Xu; Lu, Shaorong; Li, Yuqi^*

来源：Journal of Electronic Materials, 2022, 51(9): 4986-4994.

DOI：10.1007/s11664-022-09752-y

• Wear
• thermal properties
• polymide
• graphene
• triboelectric nanogenerator

The high wear and temperature resistance of electrode materials are the key issues to extend the application of triboelectric nanogenerators (TENG). The synergistic effect of Fe3O4 and ionic liquid-modified graphene (IGNs) were used to enhance the wear resistance, heat resistance, and mechanical properties of polyimide (PI). Then, the output performance of the PI-based TENG in contact-separation mode was tested. The results show that the tensile strength and thermal decomposition temperature of the IGNs/Fe3O4/PI composites (2F2G) d increased by 57 MPa and 23 degrees C, respectively, due to the synergistic effect of IGNs and Fe3O4. In addition, the friction coefficient and wear rate of the 2F2G decreased by 21% and 14%, respectively. The open-circuit voltage, short-circuit current, and peak power density of the 2F2G-based TENG were 65 V, 2.48 mu A, and 1.34 W/m(2) at 1 Hz, respectively. Owing to the high wear and temperature resistance of the 2F2G, the 2F2G-based TENG has a broad application prospect in the fields of wear- or high-temperature-resistant energy harvesting and self-powered sensors. @@@ [GRAPHICS] @@@ .

• 单位
  广西大学; 桂林理工大学