Abstract
CuO nanocrystals with different shapes, i.e. irregular nanoparticles, nanobeltsand nanoplatelets, have been synthesized by controlling a few critical synthesisparameters to explore their catalytic properties. It was found that the rate ofCO oxidation on the nanoplatelets is over six times higher than that on thenanoparticles and about three times higher than that on the nanobelts at110 °C. Based on combined characterizations, such as BET, XRD, TEM, HRTEM and COtemperature-programmed reduction, the relationship between the catalytic reactivity andthe shape as well as the predominantly exposed crystal planes of the CuO nanocrystals hasbeen discussed.
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