Solution combustion synthesis of cerium oxide nanoparticles as corrosion inhibitor

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.

Solution combustion synthesis of FeCr 2 O 4 powders for pigment applications: Effect of fuel type

“…In another work, Ghahramani et al 31 . supposed that in small systems, fuels preferred to get required oxygen for combustion from air instead of oxidants.…”

“…Instead, a considerable amount of macropores (>50 nm) were mainly formed in the powders and resulted in BET‐specific surface area of 22.241 m 2 /g. This value is in the order of many powders synthesized with a solution combustion method 31 …”

“…In another work, Ghahramani et al 31 supposed that in small systems, fuels preferred to get required oxygen for combustion from air instead of oxidants. They studied the effect of different fuel types on the synthesis of cerium oxide nanoparticles.…”

Solution combustion synthesis of CeO2powders and its application in water treatment

“…Various techniques or synthetic routes such as hydrothermal, 18 sol-gel, 19 precipitation, 20 and solution combustion 21,22 have been developed for obtaining CeO 2 nancrystals with varying morphologies and sizes. Among them, solution combustion synthesis is a sim-ple and effective method to prepare nano-structured, high-purified, and crystalline oxide powders.…”

Solution combustion synthesis: the relevant metrics for producing advanced and nanostructured photocatalysts

“…The lowest and highest BET (Brunauer Emmett and Teller) surface area as 8.48 and 47.72 m 2 /g were achieved by urea and glucose, respectively. [186] Single phase BiFeO3 (photocatalytic water treatment)…”