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Room Temperature Columnar Liquid Crystalline Perylene Bisimide as a Novel Corrosion Resistant Surface Film for Mild Steel Surface   
Yazarlar
Paresh Kumar Behera
Srilatha Rao
Lekan Taofeek Popoola
Sowmyashree Ayachit Swamirayacha
Mothana Ghazi Kadhim Alfalah
Prof. Dr. Fatma KANDEMİRLİ
Kastamonu Üniversitesi, Türkiye
Shwetha Kodange
Gopala Krishna Prashant Prashant
Ammathnadu Sudhakar Achalkumar
Özet
The corrosion process can be seen as a widespread phenomenon, which is both pervasive and unstoppable. This is an undesirable phenomenon that reduces the life of materials and takes away their beauty. Potentiodynamic and electrochemical impedance tests are used to explore the corrosion inhibition abilities of a room temperature columnar liquid crystalline perylene bisimide (PBIO10) on mild steel (MS) samples in 1 M HCl. The inhibitor PBIO10 was demonstrated to be an outstanding corrosion inhibitor, with a maximum inhibition efficiency of 76%. In light of potentiometric polarization results, corrosion inhibition was achieved as the inhibitor getting adsorbed on the metal, and they fit into the category of anodic inhibitors. The protective layer was examined from SEM to confirm the protective coating generated on the MS surface. The increase in contact angle confirms the formation of a uniform layer on the MS surface. Analysis of the optical textures observed in POM, the nature of the mesophase under examination to columnar rectangular (Colr) phase. From the TGA, it was found that PBIO10 exhibits higher thermal stability u to 370 ℃. The density functional theory (DFT) and Monte Carlo simulation approach were used to investigate the relationship between molecular structure and inhibitory efficacy. The thermal behavior of PBIO10 was investigated by polarizing optical microscopy (POM), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and X-ray diffraction (XRD) studies. The phase transition from crystal to LC phase was at first examined with the help of POM observation. Graphical Abstract: [Figure not available: see fulltext.]
Anahtar Kelimeler
Adsorption | Columnar Liquid Crystal | EIS | Mild Steel surface | Molecular structure (DFT) | Perylene bisimide | Polarization
Makale Türü Özgün Makale
Makale Alt Türü SCOPUS dergilerinde yayımlanan tam makale
Dergi Adı Springer Science and Business Media LLC
Dergi ISSN 2198-4220
Dergi Tarandığı Indeksler scopus
Makale Dili İngilizce
Basım Tarihi 12-2023
Cilt No 9
Doi Numarası 10.1007/s40735-022-00735-4
Makale Linki http://dx.doi.org/10.1007/s40735-022-00735-4