Microporous MXene/Polyurethane Gels Derived from Iron Foam Templates for Ultra-High Stable Pressure Sensors and Triboelectric Nanogenerators

• DOI: 10.1021/acsaelm.4c00288
• Publication Date: 2024-05-07T04:44:00Z
• Authors: Senjing Wang; Zhuomin Chen; Hao Zhou; Xiaoguang Fu; Bingqi Chen; Fangqiao Wang; Andeng Liu; Wenxi Guo; Meidan Ye
• Keywords: MXenes; Nanoporous; Piezoresistive effect

Designing high-performance conductive polymer composites with three-dimensional (3D) porous structures for pressure sensors is still challenging, limiting their applications in various settings. Herein, a facile route fabricating 3D microporous MXene/polyurethane (MXene/PU) composite gels developed via template strategy. The iron foam acts as to provide framework the network structure, while PU and MXene form robust organic/inorganic through inter- intramolecular hydrogen bonding interactions. resulting MXene/PU gel, when configured into piezoresistive sensor, exhibits exceptional performance characteristics large compressive range (2.6 MPa, 60% deformation), excellent cycling durability (over 12000 cycles within 1 day), long-term stability (maintaining functionality over 20 days 20000 cycles), high sensitivity (0.96144 kPa–1). Furthermore, sensor demonstrates remarkable effectiveness plantar health monitoring, showcasing its potential human care rehabilitation. Additionally, applicability of triboelectric nanogenerators has been explored, expanding scope applications. Our findings highlight versatility promise field advanced wearable electronic sensors.