Preparation of CuO Nanoparticles by Laser Heating Gas-Evaporation Method

Abstract

Abstract: CuO nanoparticles were prepared by a laser heating gas-evaporation method, with 150W CW CO₂ laser as the light source and Cu(Ac)₂·2H₂O as the
target. The effects of process parameters on nanoparticles were studied. XRD, ED and TEM were used to characterize the samples. The formation mechanism of
Cu/O nanoparticles was preliminarily discussed. The experimental results show that the process parameters such as laser power density, reaction pressure,
the sorts and rate of airflow etc, effect the sizes and crystal system of nanoparticles. In inert gases, the products are Cu and Cu₂O, the diameter of nanoparticles
is between 10 and 30nm; In oxygen, the products are Cu ,Cu₂O and CuO, the diameter of nanoparticles is between 10 and 50nm.

Key words: CuO, nanoparticles, laser chemistry

CLC Number:

TB383

GUO Guang-Sheng,LI Qiang,WANG Zhi-Hua,YANG Fu-Ming,GUO Hong-You. Preparation of CuO Nanoparticles by Laser Heating Gas-Evaporation Method[J]. Journal of Inorganic Materials.

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Preparation of CuO Nanoparticles by Laser Heating Gas-Evaporation Method

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