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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 XRD patterns of the products prepared by microplasma electrochemical method in different electrolyte for 20 min: (a) H2O–ethylene glycol (volume ratio 1:1) and (b) pure distilled water.(14 mA/cm2 of current density, at room temperature, without stirring).
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f2: The XRD patterns of the products prepared by microplasma electrochemical method in different electrolyte for 20 min: (a) H2O–ethylene glycol (volume ratio 1:1) and (b) pure distilled water.(14 mA/cm2 of current density, at room temperature, without stirring).

Mentions: The effects of electrolyte on the results of Cu2O nanoparticles prepared by microplasma electrochemical method were firstly investigated. The XRD patterns of the Cu2O synthesized in different electrolytic media (H2O and H2O–ethylene glycol (volume ratio 1:1, the volume fraction of ethylene glycol is 50%)) under the same conditions in the 2θ range of 10–80° were shown in Figure 2. It is clearly show that Figure 2(a) contains five peaks that are in well agreement with those for Cu2O nanocrystals obtained from the International Center of Diffraction Data card (ICDD, formerly JCPDS No. 05–0667). However, according to Figure 2(b), there were a lot peaks appeared which indicated that the products prepared in a pure water solvent also contained CuO and CuCl. This difference could visually be seen from the color of products that prepared in various electrolytes. As shown in Figure 3, the color of pure nanoparticles synthesized in a mix electrolyte were orange, however, the color of impure one which prepared in pure water was darker.


Cu2O nanoparticles synthesis by microplasma.

Du C, Xiao M - Sci Rep (2014)

The XRD patterns of the products prepared by microplasma electrochemical method in different electrolyte for 20 min: (a) H2O–ethylene glycol (volume ratio 1:1) and (b) pure distilled water.(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

f2: The XRD patterns of the products prepared by microplasma electrochemical method in different electrolyte for 20 min: (a) H2O–ethylene glycol (volume ratio 1:1) and (b) pure distilled water.(14 mA/cm2 of current density, at room temperature, without stirring).
Mentions: The effects of electrolyte on the results of Cu2O nanoparticles prepared by microplasma electrochemical method were firstly investigated. The XRD patterns of the Cu2O synthesized in different electrolytic media (H2O and H2O–ethylene glycol (volume ratio 1:1, the volume fraction of ethylene glycol is 50%)) under the same conditions in the 2θ range of 10–80° were shown in Figure 2. It is clearly show that Figure 2(a) contains five peaks that are in well agreement with those for Cu2O nanocrystals obtained from the International Center of Diffraction Data card (ICDD, formerly JCPDS No. 05–0667). However, according to Figure 2(b), there were a lot peaks appeared which indicated that the products prepared in a pure water solvent also contained CuO and CuCl. This difference could visually be seen from the color of products that prepared in various electrolytes. As shown in Figure 3, the color of pure nanoparticles synthesized in a mix electrolyte were orange, however, the color of impure one which prepared in pure water was darker.

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