Metal-Organic Framework Derived Porous Carbon Decorated Nanofibers for Self-Powered Triboelectric Sensors
Metal-organic frameworks (MOFs) driven cobalt nanoporous carbon (Co-NPC) decorated polyvinylidene fluoride (PVDF) composite nanofibers (NFs) are presented as a highly electronegative triboelectric material
to improve the electrical performance of triboelectric nanogenerators (TENGs). The Co-NPC significantly increased the charge density and the dielectric constant of the fabricated PVDF composite NFs because of its high surface area and good nanoporosity. As-fabricated Co-NPC/PVDF NF-based TENG showed an excellent output power density (19.24 Wm-2) and harvested biomechanical energy to power portable and wearable electronics. At 95 % relative humidity (RH), the TENG exhibited steady output power for over 60 k
cycles. The TENG also worked as a self-powered pressure sensor with ultra-high sensitivity of 6.39 V/kPa for human motion detection and smart home control system applications.
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