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Updated: Feb 6, 2026

Potentiodynamic Corrosion Testing
Published on: September 4, 2016
Arch Shaped Triboelectric Nanogenerator for Wave Energy Harvesting and Corrosion Protection
Jingshun He1,2, Xiutong Wang1,2, Mingxing Wang1,2
1Shandong Key Laboratory of Marine Environmental Corrosion and Bio-fouling, State Key Laboratory of Advanced Marine Materials, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.
Abstract:
As a renewable energy source, wave energy exploitation reduces fossil energy pollution and aids carbon neutrality. Traditional electromagnetic generators (EMGs) have low low-frequency conversion efficiency, limiting large-scale application. Triboelectric nanogenerators (TENGs), invented in 2012, offer a new way for wave energy harvesting with advantages of wide material selection, low-frequency adaptability, light weight and low cost, but are restricted by marine corrosion and inefficient low-frequency capture. This work designed an arch-structured TENG (Arch-TENG) that captures wave energy via bending. Compared with CS-TENG, its charge transfer increases by over 450%, with a charge output density of 12.7 nC cm2 at 0.5 Hz and stable performance after 26 h tests. The array-integrated device capable of large-scale wave energy harvesting is designed based on the Arch-TENG. It was verified that this device can not only stably power low-power electronic devices but also be used for cathodic protection tests of carbon steel Q235 in seawater, which will provide more practical applications of TENG in marine environments.
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