Flexible carbon cloth-based single-electrode triboelectric nanogenerators with incorporated TiO2 nanoparticles. (November 2022)

• Record Type: Journal Article
• Authors: Kruchinin, Roman; Nurmakanov, Yerzhan; Nauryzbayev, Galymzhan; Adair, Desmond; Bakenov, Zhumabay; Kalimuldina, Gulnur
• Is Part Of: Energy reports. Volume 8(2022)
• Page Start: 15048
• Page End: 15056
• Publication Date: 2022-11
• Subjects: Energy harvesting -- Mechanical energy -- Triboelectric nanogenerator -- Self-powered electronics -- Carbon cloth -- Polydimethylsiloxane; Power resources -- Periodicals; Energy industries -- Periodicals; Power resources; Periodicals; Electronic journals; 621.04205
• DOI: 10.1016/j.egyr.2022.11.049
• Languages: English
• ISSNs: 2352-4847

Abstract

Abstract: Recently, flexible triboelectric nanogenerators (TENGs) have gained significant interest as a promising autonomous technology for harvesting abundant mechanical energy and powering portable electronic devices. In this work, a high-performance flexible single-electrode TENG (SETENG) is presented with a highly conductive carbon cloth (CC) textile electrode and an encapsulating triboelectric material based on polydimethylsiloxane (PDMS). To increase the generation of triboelectric charges, a rough microtextured surface is implemented on the PDMS friction layer through a simple imprint lithography approach. In addition, the output performance of the prepared SETENG device is further improved by incorporating various concentrations of titanium dioxide (TiO2 ) nanoparticles. As a result, flexible CC@TiO2 -PDMS SETENGs efficiently converts the mechanical energy into electrical power through continuous contact/separation processes caused by the counter tribo-positive friction objects (i.e., human skin, nylon, and cotton fabrics). It was shown that a sample with 5 wt% TiO2, CC@5wt%TiO2 -PDMS SETENG, achieves the highest output and a sample of 6 × 2.5 cm 2 area could charge capacitors (0.1, 1, 10 μ F ) and power 130 LEDs connected in series. Finally, the demonstration of a fully functioning SETENG-powered calculator provides strong evidence of the current maturity of the technology and its excellent potential for self-powered small electronics application. Graphical abstract: