Nanotechnology

Green Energy Based Electrochemical Corrosion Protection

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The service life of marine steel structures is significantly affected by metal corrosion. Conventional cathodic protection methods require large amounts of metal energy and resources. Therefore, it is very important to create an environmentally friendly and economical energy source to prevent corrosion.

Image Credit: JJSINA/Shutterstock.com

Institute of Oceanology from Chinese Academy of Sciences (IOCAS), under the direction of Prof. Xiutong Wang, recently focused on triboelectric nanogenerators (TENGs) as a new energy conversion system and developed melamine (MF)/MXene/(email protected) foam2-TENG ((email protected)2-TENG) for environmentally friendly electrochemical corrosion protection.

Nano Energy published the study on March 13th2023.

Effects of MXene and TiO2 nanotubes on the charge transfer process of the friction layer was investigated by the researchers. They found that MXene’s conductive qualities and strong electronegativity aided Ecoflex’s charge transfer.

TiO2 nanotubes can record payload images simultaneously. The above two factors work together to improve TENG’s electrical output performance, which helps to create a better cathodic protection effect.

Additionally, the researchers used a micro-electrolytic cell system to assess the impact of cathodic protection (email protected).2-TENG.

The advantages of TENG technology include high effectiveness of low-frequency energy transfer, wide material supply, light weight, and low cost.

There are many mechanical energies available in the marine environment, such as wind energy, wave energy, tidal energy, etc., which provide a convenient energy source for corrosion protection using TENG.

Youbo Nan, First Author Study, Institute of Oceanology Chinese Academy of Sciences

Prof. Xiutong Wang, a professor at the Institute of Oceanology Chinese Academy of Sciences, added, “This study demonstrates TENG’s potential as a green energy source for electrochemical cathodic protection, which will provide safety assurance for structures and equipment in marine environments.

Journal Reference

Di, Y., et al. (2023) Synergistic effects of charge transport and entrapment in tribo materials for amplified tribo-electric nano-generation. Nano Energy. doi:10.1016/j.nanoen.2023.108345.

Source: https://english.cas.cn/

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