Influence of pH on the Morphology of Yttrium Oxide Hydroxide Nitrate Nanocrystal

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Yttrium oxide hydroxide nitrate (Y4O(OH)9NO3), which was prepared by polyvinyl alcoholassisted hydrothermal method from the Y(NO3)3 and KOH starting solution, was characterized by XRD and FE-SEM. The results revealed that pH value of the starting solution is an important factor which determines the morphology and size of the products. The obtained products varied from lamina microprisms to circular nanorods when the pH value increased from 7.0 to 8.0. In the high pH value above 8.0, the size of nanorods decreased with increasing pH value. A primary mechanism was proposed to explain the evolution of morphology and size of Y4O(OH)9NO3 products prepared under various pH values.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

2176-2178

DOI:

10.4028/www.scientific.net/KEM.336-338.2176

Citation:

Z. L. Hong et al., "Influence of pH on the Morphology of Yttrium Oxide Hydroxide Nitrate Nanocrystal", Key Engineering Materials, Vols. 336-338, pp. 2176-2178, 2007

Online since:

April 2007

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$35.00

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