alexa Effect Of Calcination Temperature On CeO2 Nanoparticle Size Distribution Synthesized Via Microemuslsion Method
ISSN: 2157-7439

Journal of Nanomedicine & Nanotechnology
Open Access

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4th International Conference on Nanotek & Expo
December 01-03, 2014 DoubleTree by Hilton Hotel San Francisco Airport, USA

Navid Zanganeh, Hafez Balavi, Farbod Sharif, Mahla Zabet and Marzieh Bakhtiary Noodeh
Posters: J Nanomed Nanotechnol
DOI: 10.4172/2157-7439.S1.018
Abstract
Cerium oxide with the chemical formula CeO2 is an inorganic compound which is widely used in formulation for industrial purposes. CeO2 nanoparticles in the form of catalyst or catalyst support have a beneficial application in emission reduction or low-temperature water-gas shift reaction. In this research, we synthesized CeO2 nanoparticles via microemulsion method and investigated the effect of calcination temperature on the size of particles. Cerium nitrate hexahydrate and diethanolamineoleate were used as precursor?s salt and nonionic surfactant respectively. For this purpose, the calcination temperature was varied in the range of 400⁰C to 600⁰C with the temperature step size of 50⁰C. X-ray Diffraction Spectroscopy (XRD), Scanning Electron Microscopy (SEM), Transmitted Electron Microscopy (TEM), and Brunauer?Emmett?Teller (BET) analysis preformed to characterize the obtained nanoparticles. XRD patterns confirmed the formation of CeO2 nanoparticles. SEM and TEM images illustrated that the particles formed clusters with spherical shape in the nanosize range. These results were completely in agreement with the XRD results. Furthermore, increasing the calcination temperature resulted in the formation of larger particles. Hence finest particles (average 3.90 nm) were found under optimum condition which was 0.001 mol of cerium nitrate, 0.02 mol of surfactant, and calcination temperature of 400 ⁰C. The average specific surface area of obtaining nanoparticles at optimum condition was 58.43 m2/g.
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