Nanocrystalline CeO2, ZrO2 and CeO2–ZrO2 with various Ce, Zr compositions (1∶1, 1∶2, and 2∶1) have been prepared and characterized. The preparation method demonstrates the replacement of stoichiometric reagents and utilization of waste biomass for an important class of metal oxides useful for various applications. Physico-chemical characterization studies including HRTEM analysis for the representative samples showed the presence of CeO2 with particle size 5–10 nm, ZrO2 with particle size 5–10 nm and Ce0.5 Zr0.5O2 particles in the range 5–10 nm. EDS analysis confirmed the particles to be in cubic phase.
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Muto et al. (2003) studied this question.
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