摘要：In this study nano-crystalline ZnO particles were synthesized by microwave-assisted solution combustion method. Zinc nitrate and urea were used as oxidizer and fuel, respectively. The effect of fuel to oxidizer (F/O) ratio on ZnO powder properties was investigated by using different urea/nitrate ratios. X-ray diffractometer, scanning electron microscopy and fourier transform infra-red were used in powders characterization. The results showed that under microwave radiation the pure ZnO phase was formed after combustion reaction with different F/O ratios. The crystallite size was calculated in the range of 28-32 nm using Scherrers equation. The result has shown that F/O ratio variation influenced the particle morphology from pyramid structure to partially sintered spherical.
