AI Article Synopsis
- The unique structure of perovskite-like compounds creates open spaces in crystals that enhance their functionality, allowing for the accommodation of active oxygen which aids in corrosion prevention.
- Doping magnetic lanthanum cuprate with Co and Sr significantly improved its corrosion resistance compared to traditional materials, achieving 215.2% better than LaCuO and 566.7% compared to epoxy resin.
- The combination of high concentration doping, oxygen vacancy defects, and the special interlayer structure of these compounds helps trap active oxygen and form a protective layer that improves the durability of coatings in corrosive environments.
Article Abstract
The special structure of perovskite-like compounds allows the existence of some open spaces in the crystals that play an important role in their crystal function enhancement and can accommodate active oxygen, which helps to solve some problems in the field of corrosion prevention. The magnetic lanthanum cuprate was obtained through the doping of Co and Sr, and compared with LaCuO and epoxy resin, its corrosion resistance was improved by 215.2 and 566.7%, respectively. The micromagnetic field in the crystal interfered with the state of motion of the electrons and prolonged their transport path. High concentration doping and substitution of unequal states led to the formation of oxygen vacancy defects, which could trap active oxygen molecules and inhibit cathodic corrosion reactions. The unique alternating interlayer structure of perovskite-like compounds was conducive to the release of Cu, thus forming a more stable passivator on the surface of the coating. LaSrCuCoO had both magnetic properties and structural advantages, which enhanced the shielding property of epoxy resin and expanded the application of perovskite-like compounds in the field of corrosion prevention.
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| http://dx.doi.org/10.1021/acsami.3c09858 | DOI Listing |
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