Patil, S.S.Prasad Dasari, H.P.2026-02-052019Materials Science for Energy Technologies, 2019, 2, 3, pp. 485-489https://doi.org/10.1016/j.mset.2019.05.005https://idr.nitk.ac.in/handle/123456789/24236Effect of fuel (glycine and urea) and solvent (water, acetone and ethanol) on the soot oxidation activity of ceria nanoparticles synthesized by solution combustion method is carried out in the present study. X-ray diffraction (XRD) patterns displayed a fluorite structure and the Tauc's plot obtained from UV-Diffusive Reflectance spectroscopy (UV-DRS) showed that the band gap value was around 2.9–3.1 eV for the synthesized ceria nanoparticles irrespective of the fuel and solvent used. Ceria nanoparticles synthesized using glycine and acetone resulted in lower crystallite size, higher facet ratios ([1 0 0]/[1 1 1] and [1 1 0]/[1 1 1]) and higher lattice strain than compared to other solvents and fuels and thus resulted in better soot oxidation activity (T<inf>50</inf> = 416 °C). The present synthesis method has played a significant role in improving the reactive facet ratios, providing lower crystallite size and high lattice strain. © 2019AcetoneAmino acidsCerium oxideCombustionCrystallite sizeFluorsparFuelsNanoparticlesOrganic solventsOxidationSootSynthesis (chemical)UreaCeria nanoparticlesFuel and solventLattice strainOxidation activitiesSolution combustion methodSolution combustion synthesisSoot oxidationSoot oxidation activitySynthesisedX- ray diffractionsX ray diffraction