Abstract
ABSTRACT Copper submicrometer particles have been synthesised via a hydrothermal treatment. The precursor is obtained by means of the reaction of chemical reduction method. The copper powders studied by powder X-ray diffraction exhibit a perfect crystallinity with a lattice constant of 3.629 Ǻ. Meanwhile, the scanning electron microscope photomicrographs and particle size distribution reveal that the powders have an average particle size of 0.4 μm with narrow size distribution. The differential thermal analysis curves indicate that initial oxidation temperature is greatly improved from 212°C to 272°C after hydrothermal treatment, indicating the antioxidant ability of the copper submicrometer particles synthesised by hydrothermal treatment increased obviously.
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