CUHK team develops water-based TENG for efficient ocean wave energy harvesting

A research team from the Faculty of Engineering of The Chinese University of Hong Kong (CUHK) has recently developed a water-tube-based triboelectric nanogenerator that can efficiently convert various irregular and low-frequency mechanical energies, including ocean wave energy, into electricity, providing a new avenue for the development of “blue energy”.

The ocean covers about 70% of the Earth’s surface area and is the largest reservoir of energy. Researchers have been exploring the approach for harnessing ocean energy to solve the world energy crisis and pollution problems caused by thermal power generation. The nanogenerator, including piezoelectric, triboelectric, and pyroelectric nanogenerators, is one of the key technologies for mechanical energy conversion. The triboelectric nanogenerator (TENG) makes use of the triboelectric effect and electrostatic induction to harvest mechanical energy based on contact or sliding electrification.

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Photo credit: The Chinese University of Hong Kong (CUHK)