Hierarchical assembly of inorganic nanostructure building blocks to octahedral superstructures - a true template-free self-assembly

    Authors

    Svnt Kuchibhatla; A. S. Karakoti;S. Seal

    Comments

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    Abbreviated Journal Title

    Nanotechnology

    Keywords

    ENGINEERED OXIDE NANOPARTICLES; IN-VITRO TRAUMA; CEO2 NANORODS; CERIA; PROTECTION; MORPHOLOGY; DAMAGE; WATER; SHAPE; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied

    Abstract

    A room temperature, template-free, wet chemical synthesis of ceria nanoparticles and their long term ageing characteristics are reported. High resolution transmission electron microscopy and UV-visible spectroscopy techniques are used to observe the variation in size, structure and oxidation state, respectively as a function of time. The morphology variation and the hierarchical assembly (octahedral superstructure) of nanostructures are imputed to the inherent structural aspects of cerium oxide. It is hypothesized that the 3-5 nm individual building blocks will undergo an intra-agglomerate re-orientation to attain the low energy configuration. This communication also emphasizes the need for long term ageing studies of nanomaterials in various solvents for multiple functionalities.

    Journal Title

    Nanotechnology

    Volume

    18

    Issue/Number

    7

    Publication Date

    1-1-2007

    Document Type

    Article

    Language

    English

    First Page

    4

    WOS Identifier

    WOS:000243874200003

    ISSN

    0957-4484

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