Spontaneous self-assembly of cerium oxide nanoparticles to nanorods through supraaggregate formation

    Authors

    S. C. Kuiry; S. D. Patil; S. Deshpande;S. Seal

    Comments

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    Abbreviated Journal Title

    J. Phys. Chem. B

    Keywords

    PARTICLES; NANOWIRES; NANOCRYSTALS; SPECTROSCOPY; Chemistry, Physical

    Abstract

    Self-assembly of cerium oxide nanoparticles to nanorods is reported. Such nanorods have an aspect ratio of 6 with a diameter of approximately 40 nm. The formation of cylindrical supraaggregates and their subsequent growth by preferential assembling of ceria nanocrystallites along the longitudinal direction was proposed to be the probable mechanism of spontaneous self-assembly of nanorods. The supraaggregate formation was facilitated by influencing the local curvature of the micelle surface in the presence of nitrate ions as a precursor solution. The nanorods were characterized using high-resolution transmission electron microscopy with energy dispersive spectroscopy and selected area electron diffraction for their morphology, chemistry, and crystal structure.

    Journal Title

    Journal of Physical Chemistry B

    Volume

    109

    Issue/Number

    15

    Publication Date

    1-1-2005

    Document Type

    Letter

    Language

    English

    First Page

    6936

    Last Page

    6939

    WOS Identifier

    WOS:000228419100006

    ISSN

    1520-6106

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