Sol-gel synthesis and phase evolution behavior of sterically stabilized nanocrystalline zirconia

    Authors

    S. Shukla; S. Seal;R. Vanfleet

    Abbreviated Journal Title

    J. Sol-Gel Sci. Technol.

    Keywords

    sol-gel; nanocrystalline; zirconia; hydroxypropyl cellulose; XPS; steric-stabilization; CERAMIC POWDERS; TETRAGONAL ZRO2; CATALYSTS; TIO2; Materials Science, Ceramics

    Abstract

    Nanocrystalline as well as submicron sized, non-agglomerated, spherical ZrO2 particles have been successfully synthesized using the sol-gel technique utilizing hydroxypropyl cellulose (HPC) as a polymeric steric stabilizer. The effect of various parameters such as the ratio of molar concentration of water and alkoxide (R), the molar concentration [HPC] and the molecular weight (MWHPC) of HPC polymer as well as the calcination temperature on ZrO2 nanocrystallites size and their phase evolution behavior is systematically studied. The phase evolution behavior of nanocrystalline ZrO2 is explained and correlated with the adsorption behavior of HPC polymer on ZrO2 nanoparticles surface, which is observed to be a function of R, [HPC], MWHPC and the calcination temperature. Optimum synthesis parameters for obtaining 100% tetragonal phase in nanocrystalline ZrO2 are identified for the present sol-gel method of synthesizing nanoparticles.

    Journal Title

    Journal of Sol-Gel Science and Technology

    Volume

    27

    Issue/Number

    2

    Publication Date

    1-1-2003

    Document Type

    Article

    Language

    English

    First Page

    119

    Last Page

    136

    WOS Identifier

    WOS:000182923000003

    ISSN

    0928-0707

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