Improving output performance is a key to develop triboelectric nanogenerator (TENG) applications. Herein, an improved melamine foam (MF) /MXene/Ecoflex@TiO2-TENG (FME@TiO2-TENG) based on the composite dielectric MF/MXene/Ecoflex@TiO2 (FME@TiO2) is developed after comprehensively considering charge generation, transport, trapping, and dissipation. A 3D MF framework with evenly dispersed MXene exhibits strong electronegativity, electrical conductivity, and a formation of a large number of micro-capacitances, which are advantageous for surface charge generation, transfer, and retention in the composite dielectric FME@TiO2. More importantly, dual functions of a TiO2 nanotube array film, i.e., its high dielectric property and electron-trapping ability, are beneficial for output of electrical properties. A cathodic protection system powered by the FME@TiO2-TENG was designed to demonstrate its application potential in electrochemistry. Furthermore, a novel in-situ micro-electrolytic cell observation system using K3[Fe (CN)6] as an indicator was designed to evaluate the cathodic protection effect. The results showed that the FME@TiO2-TENG could be used as an independent power source to provide electrochemical cathodic protection. This study provides a useful guidance for a development of the high-performance TENG composite dielectrics and promotes their practical application in the field of the electrochemical cathodic protection.
CITATION STYLE
Nan, Y., Wang, X., Xu, H., Wu, Y., Zhou, H., Sun, Y., … Huang, Y. (2023). Synergistic effects of charge transport and trapping in tribomaterials for boosted triboelectric nanogenerators. Nano Energy, 110. https://doi.org/10.1016/j.nanoen.2023.108345
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