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Cu2O nanoparticles synthesis by microplasma.

Du C, Xiao M - Sci Rep (2014)

Bottom Line: Microplasma was successfully used as the cathode and copper plate was used as the anode.The results show that the morphology of Cu2O nanocrystals obtained by this technology is mainly dependent on the electrolytic media, stirring, current density and reaction temperature.For the flexibility and effectiveness of this microplasma technology, it will have broad application prospects in the realm of nanoscience, energy and environment.

View Article: PubMed Central - PubMed

Affiliation: Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.

ABSTRACT
A simple microplasma method was used to synthesize cuprous oxide (Cu2O) nanoparticles in NaCl-NaOH-NaNO3 electrolytic system. Microplasma was successfully used as the cathode and copper plate was used as the anode. The Cu2O products are characterized by X-ray powder diffraction (XRD), field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM). The results show that the morphology of Cu2O nanocrystals obtained by this technology is mainly dependent on the electrolytic media, stirring, current density and reaction temperature. The uniform and monodisperse sphere Cu2O nanoparticles with the size about 400 ~ 600 nm can be easily obtained in H2O-ethylene glycol mix-solvent (volume ratio 1:1) and appropriate current density with stirring at room temperature. In addition, the possible mechanism has been reported in the article. And the average energy consumed in producing 1 g Cu2O nanoparticles is 180 kJ. For the flexibility and effectiveness of this microplasma technology, it will have broad application prospects in the realm of nanoscience, energy and environment.

No MeSH data available.


Related in: MedlinePlus

The FESEM (a) and TEM (b) images of the Cu2O nanoparticles prepared at 80°C (10 mA/cm2 of current density, with stirring).
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f7: The FESEM (a) and TEM (b) images of the Cu2O nanoparticles prepared at 80°C (10 mA/cm2 of current density, with stirring).

Mentions: As a significant thermodynamic parameter, reaction temperature exhibits a considerable influence on the morphology of nanoparticles. A representative FESEM and TEM micrographs of the cuprous oxide nanocrystals prepared at 80°C for 20 min is shown in Figure 7. It is already known that Cu2O synthesized at room temperature has a sphere shape, as shown in Figure 5(a) and 5(b). However, with the rising of reaction temperature, morphology of products changed gradually from sphere to octahedron under the same conditions, and the size of nanocrystals was added to 1 μm (Figure 7). Therefore, temperature can not only affect the morphology of Cu2O nanoparticles but also change the dimension of them.


Cu2O nanoparticles synthesis by microplasma.

Du C, Xiao M - Sci Rep (2014)

The FESEM (a) and TEM (b) images of the Cu2O nanoparticles prepared at 80°C (10 mA/cm2 of current density, with stirring).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4256601&req=5

f7: The FESEM (a) and TEM (b) images of the Cu2O nanoparticles prepared at 80°C (10 mA/cm2 of current density, with stirring).
Mentions: As a significant thermodynamic parameter, reaction temperature exhibits a considerable influence on the morphology of nanoparticles. A representative FESEM and TEM micrographs of the cuprous oxide nanocrystals prepared at 80°C for 20 min is shown in Figure 7. It is already known that Cu2O synthesized at room temperature has a sphere shape, as shown in Figure 5(a) and 5(b). However, with the rising of reaction temperature, morphology of products changed gradually from sphere to octahedron under the same conditions, and the size of nanocrystals was added to 1 μm (Figure 7). Therefore, temperature can not only affect the morphology of Cu2O nanoparticles but also change the dimension of them.

Bottom Line: Microplasma was successfully used as the cathode and copper plate was used as the anode.The results show that the morphology of Cu2O nanocrystals obtained by this technology is mainly dependent on the electrolytic media, stirring, current density and reaction temperature.For the flexibility and effectiveness of this microplasma technology, it will have broad application prospects in the realm of nanoscience, energy and environment.

View Article: PubMed Central - PubMed

Affiliation: Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.

ABSTRACT
A simple microplasma method was used to synthesize cuprous oxide (Cu2O) nanoparticles in NaCl-NaOH-NaNO3 electrolytic system. Microplasma was successfully used as the cathode and copper plate was used as the anode. The Cu2O products are characterized by X-ray powder diffraction (XRD), field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM). The results show that the morphology of Cu2O nanocrystals obtained by this technology is mainly dependent on the electrolytic media, stirring, current density and reaction temperature. The uniform and monodisperse sphere Cu2O nanoparticles with the size about 400 ~ 600 nm can be easily obtained in H2O-ethylene glycol mix-solvent (volume ratio 1:1) and appropriate current density with stirring at room temperature. In addition, the possible mechanism has been reported in the article. And the average energy consumed in producing 1 g Cu2O nanoparticles is 180 kJ. For the flexibility and effectiveness of this microplasma technology, it will have broad application prospects in the realm of nanoscience, energy and environment.

No MeSH data available.


Related in: MedlinePlus