Solution combustion synthesis of cerium oxide nanoparticles as corrosion inhibitor |
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| Authors: | Zahra Ghahramani Amir Masoud Arabi Mahdi Shafiee Afarani Mohammad Mahdavian |
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| Affiliation: | 1. Institute of Nanotechnology, University of Sistan and Baluchestan, Zahedan, Iran;2. Department of Inorganic Pigments and Glazes, Institute for Color Science and Technology (ICST), Tehran, Iran;3. Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, Tehran, Iran |
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| Abstract: | In this study, combustion synthesis of cerium oxide nanoparticles was reported using cerium nitrate hexahydrate as starting material as well as urea, glycine, glucose, and citric acid as fuels. The influence of fuel type on structure, microstructure, band gap, and corrosion inhibition was investigated. X-ray diffraction (XRD) patterns and scanning electron microscopy micrographs showed that CeO2 nanoparticles with different morphologies were obtained depending on the fuel type. Microstructural changes from unreacted gel to sponge-like morphologies were resulted by varying the fuel type from urea, glycine, and glucose to citric acid. In addition to Ce–O bonds, Fourier transform infrared analysis showed carbon bonds of carbonaceous compositions from incomplete combustion which were declined during combustion reaction. Furthermore, corrosion analyses showed that samples synthesized using urea fuel released the most Ce+4 ions and could have better protection than other samples. |
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| Keywords: | cerium oxide corrosion resistance fuel type solution combustion synthesis |
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