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A high-performance triboelectric nanogenerator with improved output stability by construction of biomimetic superhydrophobic nanoporous fibers
- Source :
- Nanotechnology. 31:215401
- Publication Year :
- 2020
- Publisher :
- IOP Publishing, 2020.
-
Abstract
- The utilization of nanoporous materials is an extremely effective approach to enhance the electrical performances of triboelectric nanogenerators (TENGs). However, existing methods for preparing nanoporous tribo-materials not only are complicated, costly and time-consuming but also waste lots of materials. Meanwhile, the fabricated nanoporous tribo-materials with low roughness by nature possess poor surface hydrophobicities, causing low output stability in a humid environment. Here, a bio-inspired petiole-like micron fiber-based tribo-material with inner nanopores, rough surface nanostructures, and superhydrophobicity is first designed by an extraordinarily simple, ultralow-waste and efficient single-component electrospinning. The petiole-like structures and superhydrophobicity endow the assembled triboelectric nanogenerator (PMF-TENG) with outstanding electrical performances and superior output stability under humid conditions. With a giant power density of 56.9 W m–2 and a high peak-to-peak output voltage of 2209 V, the optimized PMF-TENG can not only be used as a biomechanical energy harvester to directly drive 833 light-emitting-diodes and small electronics but also serve as a self-powered sensor to detect body motions. Moreover, under the high relative humidity of 80%, the output retention rate of the optimized PMF-TENG is 1.7 and 2.2 times as high as the TENG assembled with the traditional smoother solid nanofiber-based tribo-material and the monolithic nanoporous tribo-material-based TENG, respectively. This work provides an easy-to-fabricate high-performance nanoporous material-based TENG with ultralow material waste and extends its potential for application in humidity conditions.
- Subjects :
- Materials science
Nanoporous
Mechanical Engineering
Nanogenerator
Bioengineering
Nanotechnology
02 engineering and technology
General Chemistry
Surface finish
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Electrospinning
0104 chemical sciences
Mechanics of Materials
Nanofiber
General Materials Science
Electronics
Fiber
Electrical and Electronic Engineering
0210 nano-technology
Triboelectric effect
Subjects
Details
- ISSN :
- 13616528 and 09574484
- Volume :
- 31
- Database :
- OpenAIRE
- Journal :
- Nanotechnology
- Accession number :
- edsair.doi.dedup.....3446c47107e60d6981a1c7c42589a523