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المؤلفQureshi, Ahmadyar
المؤلفHabib, Sehrish
المؤلفNawaz, Muddasir
المؤلفShakoor, R.A.
المؤلفKahraman, Ramazan
المؤلفAhmed, Elsadig Mahdi
تاريخ الإتاحة2023-02-15T10:16:35Z
تاريخ النشر2023
اسم المنشورApplied Clay Science
المصدرScopus
معرّف المصادر الموحدhttp://dx.doi.org/10.1016/j.clay.2023.106827
معرّف المصادر الموحدhttp://hdl.handle.net/10576/40095
الملخصThe deteriorating effect of corrosion can be controlled by applying suitable polymeric-based coatings. In this work, polyolefin based smart composite coatings containing modified halloysite nanotubes decorated with ceria particles were investigated to analyze their anti-corrosion behavior. For this purpose, halloysite nanotubes (Hals) were utilized as nanocarriers which were loaded with sodium dodecyl sulfate (SDS) as a corrosion inhibitor via overnight stirring and vacuum cycling method. The loaded Hals were then modified/decorated with cerium oxide (CeO2) particles by reacting cerium nitrate (Ce (NO3)3.6H2O) and sodium hydroxide (NaOH) which resulted in the formation of CeO2@HAL/SDS. The synthesized modified particles (CeO2@HAL/SDS) were characterized by energy-dispersive X-ray spectroscopy (EDX), Transmission electron microscopy (TEM), Fourier-Transform Infrared Spectrometer (FTIR), Thermogravimetric analysis (TGA), and differential thermal gravimetric analysis (DTA), X-ray diffraction analysis (XRD) and UV-vis spectroscopic analysis. TGA analysis results demonstrated that about 32% (w/w) of SDS has been loaded into Hal, and 47% (w/w) of CeO2 has been immobilized on the surface of Hal. UV-Vis analysis results demonstrated the pH-sensitive and time-dependent release behavior of synthesized particles. Furthermore, the modified CeO2@HAL/SDS particles (1 wt%) were reinforced into the polyolefin-based matrix, coated on a polished steel substrate and their electrochemical properties were investigated. The electrochemical impedance spectroscopy (EIS) analysis confirms the promising improvement in the corrosion inhibition performance of polyolefin coatings modified with CeO2@HAL/SDS particles when compared to the polyolefin composite coatings modified with HAL/SDS due to the synergistic corrosion inhibition performance of Ce(OH)3 and Fe-SDS formation at the cathodic and anodic region of steel.
راعي المشروعThis research was funded by the Qatar National Research Fund (a member of the Qatar Foundation ), grant number NPRP13S-0120-200116 and Qatar University internal grant number QUCG-CENG-22/23-461 . Statements made herein are solely the responsibility of the authors.
اللغةen
الناشرElsevier
الموضوعCeria
Corrosion inhibition
Halloysite nanotube
Polyolefin coating
Sodium dodecyl sulfate
العنوانModified halloysite nanotubes decorated with Ceria for synergistic corrosion inhibition of Polyolefin based smart composite coatings
النوعArticle
رقم المجلد233
dc.accessType Open Access


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