A Novel MXene/Ecoflex Nanocomposite-Coated Fabric As A Highly Negative And Stable Friction Layer For High-Output Triboelectric Nanogenerators

This paper introduces a novel MXene/Ecoflex nanocomposite as a promising triboelectric material due to its highly negative properties and mechanical stability. A fabric-based waterproof TENG (FW-TENG) using this nanocomposite is designed to harvest energy from human motions and the natural environment (rain and wind).

• Introduction of a novel MXene/Ecoflex nanocomposite with highly negative triboelectric properties.
• Fabrication of a fabric-based waterproof TENG (FW-TENG) for universal energy harvesting.
• Demonstration of self-powered applications, including crash protection in rain and smart carpet motion detection.
• High reliability and stability against water intrusion.

An FW-TENG was fabricated using the MXene/Ecoflex nanocomposite. Its performance was evaluated by measuring power output under a frequency of 4.5 Hz and a force of 8 N. The device's applicability was tested in various scenarios, including protection against weather-related crashes and as a self-powered motion sensor in a smart carpet.

The FW-TENG delivers a maximum output peak power of 3.69 mW and a power density of 9.24 W m⁻² at a matching load resistance of 4.5 MΩ. It successfully demonstrated its potential in self-powered applications, showing excellent mechanical amenability and stability against water.