Title: Synthesis and characterisation of CeO2 nanoparticles and rods
Abstract: Without adding any surfactant, CeO2 nanoparticles and nanorods are prepared by a very simple hydrothermal method. CeO2 nanocrystals with different morphologies were synthesised simply by dropping ammonia into cerium nitrate [Ce(NO3)3·6H2O] water solution at room temperature. The obtained samples were characterised by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy and UV–visible absorption spectroscopy. The results show that all samples are indexed to phase of CeO2. The synthesised nanoparticles are spherical with a 10–30 nm diameter and the nanorods are 100–200 nm in length and 5–10 nm in diameter. The morphology of CeO2 transforms from granular to rod-like with the ammonia concentration increasing from 0.5, 1 to 2 mol/l. The UV–vis spectra exhibit a slight red shift because of increasing crystallite size.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 6
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