Multifunctional TENG for Blue Energy Scavenging and Self-Powered Wind-Speed Sensor
Wang, Zhong Lin
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AbstractTriboelectric nanogenerator (TENG) has been considered to be a more effective technology to harvest various types of mechanic vibration energies such as wind energy, water energy in the blue energy, and so on. Considering the vast energy from the blue oceans, harvesting of the water energy has attracted huge attention. There are two major types of “mechanical” water energy, water wave energy in random direction and water flow kinetic energy. However, although the most reported TENG can be used to efficiently harvest one type of water energy, to simultaneously collect two or more types of such energy still remains challenging. In this work, two different freestanding, multifunctional TENGs are successfully developed that can be used to harvest three types of energies including water waves, air flowing, and water flowing. These two new TENGs designed in accordance with the same freestanding model yield the output voltages of 490 and ≈100 V with short circuit currents of 24 and 2.7 µA, respectively, when operated at a rotation frequency of 200 rpm and the movement frequency of 3 Hz. Moreover, the developed multifunctional TENG can also be explored as a self-powered speed sensor of wind by correlating the short-circuit current with the wind speed.
CitationXi Y, Guo H, Zi Y, Li X, Wang J, et al. (2017) Multifunctional TENG for Blue Energy Scavenging and Self-Powered Wind-Speed Sensor. Advanced Energy Materials 7: 1602397. Available: http://dx.doi.org/10.1002/aenm.201602397.
SponsorsY.X. and H.G. contributed equally to this work. Research was supported by the KAUST, the Hightower Chair foundation, and the “thousands talents” program for pioneer researcher and his innovation team, China, the National Key R & D Project from the Ministry of Science and Technology (2016YFA0202704, 2016YFA0202702), the National Natural Science Foundation of China (Grant Nos. 51432005, 5151101243, 51561145021), and the Chinese Scholars Council.
JournalAdvanced Energy Materials