Formation Mechanism of the Slice and Rod-Like Cerium Dioxide Precursor Particles

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Ultra-fine cerium dioxide precursor particles was prepared with cerium (III) nitrate hexahydrate (Ce (NO3)36H2O) and urea (CO(NH2)2) at 85°C by homogenous precipitation method. Effects of reaction and ageing time on the morphology of the precursor particles were studied, the morphology of precursor particles was characterized by scan electronic microscope and the crystallinity of the precursors was studied by X-ray diffraction. The result showed that the mono-dispersed spherical particles turned into flower and bundle-like particles as reaction time increasing, the particles turned into slice and rod-like particles as the ageing time increasing, the transition process occurred in ageing process was later than that in the reaction process, the spherical particles were less crystallization and the slice and the rod-like particles were at a state of fine crystallization.

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Periodical:

Materials Science Forum (Volumes 743-744)

Edited by:

Xinfeng Tang, Ying Wu, Yan Yao and Zengzhi Zhang

Pages:

389-396

Citation:

J. Q. Chen et al., "Formation Mechanism of the Slice and Rod-Like Cerium Dioxide Precursor Particles", Materials Science Forum, Vols. 743-744, pp. 389-396, 2013

Online since:

January 2013

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$41.00

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