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CeO 2 nanofibres have been prepared by means of the co-precipitation and ripening method. The morphology of the CeO 2 and the synthesis duration were influenced by changes in the mole ratio of the NaOH/citric acid. Three kinds of precipitates were obtained by increasing the NaOH/citric acid ratio: stuck-in-bundle, fibre and flake morphologies. The cobalt was impregnated on the prepared...
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