期刊
NANO ENERGY
卷 62, 期 -, 页码 660-666出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2019.05.063
关键词
Hybridized nanogenerator; Triboelectric nanogenerator; Energy harvesting; Footwear & wearables
类别
资金
- FEDER
- ON2 [Norte-070124-FEDER-000070]
- FCT through the Associated Laboratory - IN [NECL - NORTE-01-0145-FEDER-022096]
- International Consortium of Nanotechnologies (ICON) - Lloyd's Register Foundation, a charitable foundation
- FSE/POPH
- Fundacao para a Ciencia e a Tecnologia, Portugal [FA 02 2017 002, UID/NAN/50024/2019, UTAPEXPL/NTec/0021/2017, POCI-01-0145-FEDER-028766]
- inanoEnergy
- European Union
- [PTDC/CTM-NAN/3146/2014]
- Fundação para a Ciência e a Tecnologia [UID/NAN/50024/2019] Funding Source: FCT
Triboelectric nanogenerators (TENGs) are the most viable solution to harvest energy from low-frequency mechanical motions. Here, a triboelectric nanogenerator, an electromagnetic generator (EMG) and a piezoelectric nanogenerator (PENG) were hybridized and implemented inside a shoe sole to harvest energy from human walking. To optimize the TENG, we developed and studied three different structures (parallel, arcked and zigzag triboelectric plates) based on the contact-separation mode and suitable to be assembled in footwear. The parallel-plate structure generated the largest electrical outputs, so that the distance between triboelectric layers and the number of tribo-pair in this configuration were also optimized. This resulted in a significant increase on the output performance of the TENG and enabled the charging of different capacitors. To further enhance energy generation properties, and through an effective conjugation of triboelectrification, electromagnetic induction and piezoelectricity, we fabricated a hybridized nanogenerator that increased 20% the charging capacity of the TENG system alone. This optimized device opens new horizons for ways to produce and store wasted energy and, in a near future, to power wireless sensors or electronic gadgets.
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