International. Iranian researchers from Uremia University succeeded in producing a new type of nanocoating to increase copper's corrosion resistance.
Despite its desirable properties such as high electrical and thermal conductivity, copper is intensely affected by corrosion in acidic gaseous media, especially in the presence of sulfide ions or their compounds, including ammonia or amines. In this study, the researchers tried to prevent copper corrosion specifically in aqueous media by using nanocoatings.
The proposed nanocoatings can be synthesized in the shortest possible time with minimal energy and cost. In addition, environmentally friendly materials have been used in the production of nanocoatings, which doubles the importance of their application.
The results of the research can be used in the modification of electrodes applicable in the measurement of materials through the electrochemical method. According to thermal tests, the coating has a high thermal resistance, and therefore, this product can also be used in electronic industries.
Overall, the results confirmed the increased corrosion resistance of copper applied with nanocoatings. Among the achievements of this study, mention can be made of the synthesis of nanoparticles and nano-sheets through a simple, cost-effective, fast and repeatable method, which can be used in the control of copper corrosion.
The results of this study were published in Corrosion Science, vol. 91, Edition 1, 2015, pages 129-139.
