期刊
NANO ENERGY
卷 60, 期 -, 页码 404-412出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2019.03.054
关键词
Self-assembly; Triboelectric nanogenerator network; Water wave energy harvesting; Self-adaptive magnetic joint; Three-dimensional electrode
类别
资金
- National Key RAMP
- D Project from Minister of Science and Technology, China [2016YFA0202704]
- National Natural Science Foundation of China [51605033, 51735001, 51432005, 5151101243, 51561145021]
- China Postdoctoral Science Foundation [2015M581041]
- Beijing Municipal Science and Technology Commission [Z171100000317001, Z171100002017017, Y3993113DF]
Water wave energy is one of the tremendous clean energy reserves on earth. The utilization of wave power has long been focused but at limited scope due to challenges such as cost and durability in severe ocean environment. Here, a macroscopic self-assembly network of encapsulated triboelectric nanogenerators (TENGs) is proposed for the first time for water wave energy harvesting. By a rationally designed self-adaptive magnetic joints, the network demonstrated capabilities of self-assembly, self-healing and facile reconfiguration, greatly improving the autonomy and robustness of the system. A three-dimensional electrode structure boosts the output of the TENG unit, with an average power density of 8.69 Wm(-3) under ideal agitations and 2.05 Wm(-3) in water waves, which is more than 18 times of the power of the reported ball-shell structured device despite lower agitation frequency here. The self-assembly TENG network as a robust and high-performance structure should provide a reliable route towards large-scale utilization of the water wave energy, enabling self-powered systems in ocean.
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