Research Article

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2018, 11(4): 1873–1882

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https://doi.org/10.1007/s12274-017-1805-y

Triboelectrification based on double-layered polyaniline nanofibers for self-powered cathodic protection driven by wind

Siwen Cui1,2, Youbin Zheng1, Jun Liang1, and Daoai Wang1 (*)

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1 State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2 University of Chinese Academy of Sciences, Beijing 100049, China

Keywords: polyaniline, triboelectric nanogenerator, wind-driven, self-powered, cathodic protection
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ABSTRACT Polyaniline nanofibers (PANI NFs) are introduced to construct a wind-driven triboelectric nanogenerator (TENG) as a new power source for self-powered cathodic protection. PANI NFs serve as a friction layer to generate charges by harvesting wind energy as well as a conducting layer to transfer charges in TENG. A PANI NFs-based TENG exhibits a high output performance with a maximum output voltage of 375 V, short current circuit of 248 A, and corresponding power of 14.5 mW under a wind speed of 15 m/s. Additionally, a self-powered anticorrosion system is constructed by using a PANI-based TENG as the power source. The immersion experiment and electrochemical measurements demonstrate that carbon steel coupled with the wind-driven TENG is effectively protected with an evident open circuit potential drop and negative shift in the corrosion potential. The smart self-powered device is promising in terms of applications to protect metals from corrosion by utilizing wind energy in ambient conditions.
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Triboelectrification based on double-layered polyaniline nanofibers for self-powered cathodic protection driven by wind. Nano Res. 2018, 11(4): 1873–1882 https://doi.org/10.1007/s12274-017-1805-y

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