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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 images of the Cu2O samples prepared in different electrolytic media for 20 min: (a) H2O; (b) H2O–ethylene glycol (volume ratio 1:1).(14 mA/cm2 of current density, at room temperature, without stirring).
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f4: The FESEM images of the Cu2O samples prepared in different electrolytic media for 20 min: (a) H2O; (b) H2O–ethylene glycol (volume ratio 1:1).(14 mA/cm2 of current density, at room temperature, without stirring).

Mentions: Figure 4 shows the SEM images of the produced nanoparticles with different solvents (H2O and H2O–ethylene glycol (1:1)) as the electrolytic media. It could be observed that varying electrolyte result in different morphology of the obtained products. As can be seen in Figure 4(a), lots of irregular shape structures were synthesized when pure distilled water acted as the solvent. It could be further indicated that other materials may generated in this case. By comparison, in H2O–ethylene glycol (1:1) mix solvent, the Cu2O crystals exhibit spherical structure with the diameter size ranging from 0.2 to 2 μm (Figure 4(b)).


Cu2O nanoparticles synthesis by microplasma.

Du C, Xiao M - Sci Rep (2014)

The FESEM images of the Cu2O samples prepared in different electrolytic media for 20 min: (a) H2O; (b) H2O–ethylene glycol (volume ratio 1:1).(14 mA/cm2 of current density, at room temperature, without stirring).
© Copyright Policy - open-access
Related In: Results  -  Collection

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

f4: The FESEM images of the Cu2O samples prepared in different electrolytic media for 20 min: (a) H2O; (b) H2O–ethylene glycol (volume ratio 1:1).(14 mA/cm2 of current density, at room temperature, without stirring).
Mentions: Figure 4 shows the SEM images of the produced nanoparticles with different solvents (H2O and H2O–ethylene glycol (1:1)) as the electrolytic media. It could be observed that varying electrolyte result in different morphology of the obtained products. As can be seen in Figure 4(a), lots of irregular shape structures were synthesized when pure distilled water acted as the solvent. It could be further indicated that other materials may generated in this case. By comparison, in H2O–ethylene glycol (1:1) mix solvent, the Cu2O crystals exhibit spherical structure with the diameter size ranging from 0.2 to 2 μm (Figure 4(b)).

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