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Iraqi Journal of Physics, 2015 Hammad R. Humud, et al.
Copper nanoparticles prepared by pulsed exploding wire
Hammad R. Humud, Inaam M. Abdulmajeed, Sebba J. Kadhem
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Abstract
Keywords
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Cu nanofluids,
exploding wire,
Optical properties,
XRD.
Article info.
Received: Oct. 2014
Accepted: Jan. 2015
Published: Apr. 2015
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Introduction
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Experimental work
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Iraqi Journal of Physics, 2015 Hammad R. Humud, et al.
Fig.1: Principle scheme of the
experimental setup 1-DC power supply,
2-capacetor bank, 3-wire supply unit, 4-
exploding wire guide, 5-plate, 6-explosion
chamber containing liquid.
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Table 1: The experimental conditions
were used for preparation copper
nanoparticles.
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Results and discussion
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Iraqi Journal of Physics, 2015 Vol.13, No.26, PP.128-138
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Table 2: Plasmon absorption peaks at different diameters of wire and charging voltage for
copper nanoparticles in three media.
Dia. of
wire(mm)
Charge voltage
(volt)
Energy
(Joule)
λmax with
DDDW(nm)
λmax with Ethylene
Glycol(nm)
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Fig.2: UV-VIS. spectra of Cu colloid prepared by EEW in DDDW at different diameter; (a)
0.2 mm (b) 0.3 mm (c) 0.4 mm.
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Iraqi Journal of Physics, 2015 Hammad R. Humud, et al.
λ (nm)
Abs
λ (nm)
Abs
λ (nm)
Abs
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Fig.3: UV-VIS. spectra of Cu colloid prepared by EEW in ethylene glycol at different diameter;
(a) 0.2 mm (b) 0.3 mm and (c) 0.4 mm.
λ (nm)
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Fig.4: (a) UV-VIS. spectra of Cu colloid prepared by EEW in PVP with diameter of wire a- 0.2mm
b- 0.3mm and c- 0.4mm.
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Iraqi Journal of Physics, 2015 Vol.13, No.26, PP.128-138
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Fig. 5: (a) Optical absorption spectra of Cu nanoparticles synthesized by EEW in Ethylene
Glycol with diam. 0.3 mm and charged voltage 250 Voltand (b) The relation between the
peak position and the time.
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Fig.6:(a) Fresh sample for Cu nanoparticles prepared inPVP. And (b) The same sample
after two months.
X- ray diffraction (XRD)
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Iraqi Journal of Physics, 2015 Hammad R. Humud, et al.
Fig.7: X-ray diffraction pattern for bulk copper metal.
a) XRD study for copper
nanoparticles in DDDW media
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Table 3: XRD peaks of Cu NPs that obtained from exploded Cu wires in DDDW media.
2θ FWHM Int.(A.U) hkl C.S(nm) AV.C.S(nm)
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Iraqi Journal of Physics, 2015 Vol.13, No.26, PP.128-138
Fig. 8: X-ray diffraction pattern for copper oxide nanoparticles using exploded Cu wire in
DDDW media.
b) XRD study for copper
nanoparticles in Ethylene glycol
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Fig. (9): X-ray diffraction pattern for Cu NPs using exploded Cu wire in Ethylene glycol
media.
c) XRD study for copper
nanoparticles in PVP media
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Iraqi Journal of Physics, 2015 Hammad R. Humud, et al.
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Fig.10: X-ray diffraction pattern for Cu NPs using exploded Cu wire in PVP media.
Transmission electron microscope
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Iraqi Journal of Physics, 2015 Vol.13, No.26, PP.128-138
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Fig.11: TEM image and size distribution of cupper nanoparticles produced by wire
explosion process the wire diameter 0.3 mm and charging voltage was 300 Volt (a) in
DDDW. (b) inethylene Glycol. And (c), in PVP.
FT-IR Spectrum
A) FT-IRSpectroscopy for Cu
nanoparticles in PVP media
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Iraqi Journal of Physics, 2015 Hammad R. Humud, et al.
Fig.12: FTIR spectra of synthesized Cu NPs from 0.2 mm exploded wire in PVP media.
* FT-IR Spectroscopy for Cu
nanoparticles in ethylene glycol
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Conclusions
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References
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