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Multifunctional biopolymer poly (lactic acid)-based triboelectric nanogenerator viacontrolled construction of secondary electron path
- Source :
- Nano Energy; September 2024, Vol. 128 Issue: 1
- Publication Year :
- 2024
-
Abstract
- Seeking sustainable energy solutions for bioelectronic devices, high-performance, multifunctional biopolymer-based triboelectric nanogenerators (TENGs) are proving to be essential for biomedical applications. This study presents an innovative fabrication method for establishing secondary electron transport paths, resulting in biopolymer-based nanocomposites (poly (lactic acid) (PLA)/carbon nanotube (CNT)@expanded graphite (EG)) with inherent electron pathways. By integrating conductive biopolymer nanocomposites with polytetrafluoroethylene (PTFE) films, we developed a contact-separation mode TENG (CS-TENG) that demonstrates outstanding energy-harvesting efficiency. The CS-TENG displays an impressive charge density of 280 μC/m2, accompanied by an open circuit voltage (Voc) of 100.5 V and short circuit current density (Isc) values of 47.25 mA/m2. Moreover, the essential conductive network guarantees the CS-TENG’s stability across different humidity levels and serves as a moisture barrier. In addition to energy harvesting, the fabricated biopolymer nanocomposite films exhibit effective electromagnetic interference (EMI) shielding and Joule heating capabilities, rendering the CS-TENG suitable for use in diverse application scenarios. Our results emphasize the crucial role of conductive network architecture in creating high-performance biopolymer PLA-based TENGs. The innovative fabrication method and our CS-TENG's capabilities reveal the significant potential of biopolymer-based composites to transform energy harvesting, thermal management, and EMI shielding in bioelectronics.
Details
- Language :
- English
- ISSN :
- 22112855
- Volume :
- 128
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Nano Energy
- Publication Type :
- Periodical
- Accession number :
- ejs66627825
- Full Text :
- https://doi.org/10.1016/j.nanoen.2024.109877